Table of Contents

Letters
Sound values
Digraphs and letter combinations
Diacritics
Romanization
History
Origins
Archaic variants
Letter names
Letter shapes
Derived alphabets
Other uses
Use for other languages
In mathematics and science
Astronomy
International Phonetic Alphabet
Use as numerals
Use by student fraternities and sororities
Glyph variants
Computer encodings
ISO/IEC 8859-7
Greek in Unicode
Encodings with a subset of the Greek alphabet
See also
Notes
References
Bibliography
External links

Greek alphabet

NameGreek alphabet
Sample
AltΕλληνικό αλφάβητο
Caption"Greek alphabet" in the modern Greek language
TypeAlphabet
LanguagesGreek
Official Script
Time present
DirectionLeft-to-right
Fam1Egyptian hieroglyphs
Fam2Proto-Sinaitic alphabet
Fam3Phoenician alphabet
ChildrenAnatolianArmenianCaucasian AlbanianCopticCyrillicGeorgianGlagoliticGothicOld Italic (most notably Etruscan) and thus Latin and Runic
Unicode
U+0370–U+03FF Greek and Coptic
U+1F00–U+1FFF Greek Extended
Iso15924Grek
Notenone

The Greek alphabet has been used to write the Greek language since the late 9th or early 8th century BC. It was derived from the earlier Phoenician alphabet, and is the earliest known alphabetic script to systematically write vowels as well as consonants. In Archaic and early Classical times, the Greek alphabet existed in many local variants, but, by the end of the 4th century BC, the Ionic-based Euclidean alphabet, with 24 letters, ordered from alpha to omega, had become standard throughout the Greek-speaking world and is the version that is still used for Greek writing today.

The uppercase and lowercase forms of the 24 letters are:
«Α α», «Β β», «Γ γ», «Δ δ», «Ε ε», «Ζ ζ», «Η η», «Θ θ», «Ι ι», «Κ κ», «Λ λ», «Μ μ», «Ν ν», «Ξ ξ», «Ο ο», «Π π», «Ρ ρ», «Σ σ ς», «Τ τ», «Υ υ», «Φ φ», «Χ χ», «Ψ ψ», «Ω ω»

The Greek alphabet is the ancestor of several scripts, such as the Latin, Gothic, Coptic, and Cyrillic scripts. Throughout antiquity, Greek had only a single uppercase form of each letter. It was written without diacritics and with little punctuation. By the 9th century, Byzantine scribes had begun to employ the lowercase form, which they derived from the cursive styles of the uppercase letters. Sound values and conventional transcriptions for some of the letters differ between Ancient and Modern Greek usage because the pronunciation of Greek has changed significantly between the 5th century BC and the present. Additionally, Modern and Ancient Greek now use different diacritics, with ancient Greek using the polytonic orthography and modern Greek keeping only the stress accent (acute) and the diaeresis.

Apart from its use in writing the Greek language, in both its ancient and its modern forms, the Greek alphabet today also serves as a source of international technical symbols and labels in many domains of mathematics, science, and other fields.

Letters

Sound values

Greek orthographyManners of articulation
In both Ancient and Modern Greek, the letters of the Greek alphabet have fairly stable and consistent symbol-to-sound mappings, making pronunciation of words largely predictable. Ancient Greek spelling was generally near-phonemic. For a number of letters, sound values differ considerably between Ancient and Modern Greek, because their pronunciation has followed a set of systematic phonological shifts that affected the language in its post-classical stages.

LetterNameAncient pronunciationModern pronunciation
{|class="wikitable"
«Α α»alpha, Short:
Long:
Short: similar to a as in English hat
Long: a as in English father
a as in American English father, but short
«Β β»beta, b as in English betterv as in English vote
«Γ γ»gamma,
when used before «γ», «κ», «ξ», «χ», and possibly «μ»
g as in English get,
ng as in English sing when used before «γ», «κ», «ξ», «χ», and possibly «μ»
before , , ; before , ; ~ g as in Spanish lago; Similar to y as in English yellow; ng as in English long; ñ as in Spanish año
«Δ δ»delta, d as in English deleteth as in English then
«Ε ε»epsilon, ea as in Scottish English great é as in French été Similar to ay as in English overlay, but without pronouncing y.
«Ζ ζ»zeta, zd, or possibly sd as in English wisdom,
or possibly dz as in English adze
z as in English zoo
«Η η»eta, e as in English net, but long ai as in English fairy ê as in French têtei as in English machine, but short
«Θ θ»theta, t as in English topth as in English thin
«Ι ι»iota, Short:
Long:
Short: i as in French vite,
Long: i as in English machine
, , , i as in English machine, but short
«Κ κ»kappa, k as in English, but completely unaspirated as in asking before , , ; before , k as in English make; q as in French qui
«Λ λ»lambda, lamda, labda, l as in English lantern
«Μ μ»mu, m as in English music
«Ν ν»nu, n as in English net
«Ξ ξ»xi, ksx as in English fox
«Ο ο»omicron, o as in German «ohne», similar to British English call ô as in French tôt
«Π π»pi, Unaspirated p as in English spot
«Ρ ρ»rho, ~ rr as in Spanish «carro»; r as in Spanish «car
«Σ σ/ς»sigma,
before «β», «γ», or «μ»
s as in English soft
s as in English muse when used before «β», «γ», or «μ»
«Τ τ»tau, Unaspirated t as in English stoke
«Υ υ»upsilon, Short:
Long:
Short: u as in French lune, ü as in German Brüder
Long: u as in French ruse
i as in English machine, but short
«Φ φ»phi, p as in English potf as in English five
«Χ χ»chi, c as in English cat before , , ; before , ch as in Scottish loch; h as in English hue
«Ψ ψ»psi, psps as in English lapse
«Ω ω»omega, aw as in English sawas in Canadian English know

|}



Among consonant letters, all letters that denoted voiced plosive consonants (/b, d, g/) and aspirated plosives (/pʰ, tʰ, kʰ/) in Ancient Greek stand for corresponding fricative sounds in Modern Greek. The correspondences are as follows:
 Former voiced plosivesFormer aspirates
LetterAncientModernLetterAncientModern
Labial«Β β»«Φ φ»
Dental«Δ δ»«Θ θ»
Dorsal«Γ γ» ~ «Χ χ» ~

Among the vowel symbols, Modern Greek sound values reflect the radical simplification of the vowel system of post-classical Greek, merging multiple formerly distinct vowel phonemes into a much smaller number. This leads to several groups of vowel letters denoting identical sounds today. Modern Greek orthography remains true to the historical spellings in most of these cases. As a consequence, the spellings of words in Modern Greek are often not predictable from the pronunciation alone, while the reverse mapping, from spelling to pronunciation, is usually regular and predictable.

The following vowel letters and digraphs are involved in the mergers:

LetterAncientModern
«Η η»>
«Ι ι»(ː)
«ΕΙ ει»
«Υ υ»(ː) >
«ΟΙ οι»oi >
«ΥΙ υι»yː >
«Ω ω»>
«Ο ο»
«Ε ε»>
«ΑΙ αι»ai

Modern Greek speakers typically use the same, modern symbol–sound mappings in reading Greek of all historical stages. In other countries, students of Ancient Greek may use a variety of conventional approximations of the historical sound system in pronouncing Ancient Greek.

Digraphs and letter combinations

Several letter combinations have special conventional sound values different from those of their single components. Among them are several digraphs of vowel letters that formerly represented diphthongs but are now monophthongized. In addition to the four mentioned above (, pronounced /i/ and , pronounced /e/), there is also , and , pronounced /u/. The Ancient Greek diphthongs , and are pronounced av, ev and iv in Modern Greek. In some environments, they are devoiced to af, ef and if. The Modern Greek consonant combinations and stand for b and d (or mb and nd); stands for d͡z and stands for t͡s. In addition, both in Ancient and Modern Greek, the letter , before another velar consonant, stands for the velar nasal ŋ; thus and are pronounced like English like in the word finger (not like in the word thing). In analogy to and , is also used to stand for g before vowels a, o and u, and ɟ before e and i. There are also the combinations and .

CombinationPronunciationDevoiced pronunciation
avaf
evef
ivif
b or mb
d or nd
and ɡ, ɟ or ŋɡ, ŋɟ
in and

Diacritics

Greek diacritics


In the polytonic orthography traditionally used for ancient Greek and katharevousa, the stressed vowel of each word carries one of three accent marks: either the acute accent («ά»), the grave accent («ὰ»), or the circumflex accent («α̃» or «α̑»). These signs were originally designed to mark different forms of the phonological pitch accent in Ancient Greek. By the time their use became conventional and obligatory in Greek writing, in late antiquity, pitch accent was evolving into a single stress accent, and thus the three signs have not corresponded to a phonological distinction in actual speech ever since. In addition to the accent marks, every word-initial vowel must carry either of two so-called "breathing marks": the rough breathing («ἁ»), marking an /h/ sound at the beginning of a word, or the smooth breathing («ἀ»), marking its absence. The letter rho (ρ), although not a vowel, also carries rough breathing in a word-initial position. If a rho was geminated within a word, the first «ρ» always had the smooth breathing and the second the rough breathing («ῤῥ») leading to the transliteration .

The vowel letters carry an additional diacritic in certain words, the so-called iota subscript, which has the shape of a small vertical stroke or a miniature below the letter. This iota represents the former offglide of what were originally long diphthongs, (i.e. /aːi, ɛːi, ɔːi/), which became monophthongized during antiquity.

Use of diaeresis in the word indicating a vowel hiatus. The acute accent is absent in the upper case.

Another diacritic used in Greek is the diaeresis («¨»), indicating a hiatus.

This system of diacritics was first developed by the scholar Aristophanes of Byzantium (), who worked at the Musaeum in Alexandria during the 3rd century BC. Aristophanes of Byzantium also was the first to divide poems into lines, rather than writing them like prose, and also introduced a series of signs for textual criticism. In 1982, a new, simplified orthography, known as "monotonic", was adopted for official use in Modern Greek by the Greek state. It uses only a single accent mark, the acute (also known in this context as , i.e. simply 'accent'), marking the stressed syllable of polysyllabic words, and occasionally the diaeresis to distinguish diphthongal from digraph readings in pairs of vowel letters, making this monotonic system very similar to the accent mark system used in Spanish. The polytonic system is still conventionally used for writing Ancient Greek, while in some book printing and generally in the usage of conservative writers it can still also be found in use for Modern Greek.

Although it is not a diacritic, the comma has a similar function as a silent letter in a handful of Greek words, principally distinguishing (, 'whatever') from (, 'that').

Romanization

Romanization of Greek
There are many different methods of rendering Greek text or Greek names in the Latin script. The form in which classical Greek names are conventionally rendered in English goes back to the way Greek loanwords were incorporated into Latin in antiquity. In this system, is replaced with , the diphthongs and are rendered as and (or ); and and are simplified to and . Smooth breathing marks are usually ignored and rough breathing marks are usually rendered as the letter . In modern scholarly transliteration of Ancient Greek, will usually be rendered as , and the vowel combinations as . The letters and are generally rendered as and ; as either or ; and word-initial as .

Transcription conventions for Modern Greek differ widely, depending on their purpose, on how close they stay to the conventional letter correspondences of Ancient Greek-based transcription systems, and to what degree they attempt either an exact letter-by-letter transliteration or rather a phonetically based transcription. Standardized formal transcription systems have been defined by the International Organization for Standardization (as ISO 843), by the United Nations Group of Experts on Geographical Names, by the Library of Congress, and others.

LetterTraditional Latin transliteration
«Α α»A a
«Β β»B b
«Γ γ»G g
«Δ δ»D d
«Ε ε»E e
«Ζ ζ»Z z
«Η η»Ē ē
«Θ θ»Th th
«Ι ι»I i
«Κ κ»C c, K k
«Λ λ»L l
«Μ μ»M m
«Ν ν»N n
«Ξ ξ»X x cs, Ks ks
«Ο ο»O o
«Π π»P p
«Ρ ρ»R r, Rh rh
«Σ σ»/ςS s
«Τ τ»T t
«Υ υ»Y y, U u
«Φ φ»Ph ph
«Χ χ»Ch ch, Kh kh
«Ψ ψ»Ps ps
«Ω ω»Ō ō

History

Origins

History of the Greek alphabet

Dipylon inscription, one of the oldest preserved inscriptions in the Greek alphabet,

During the Mycenaean period, between roughly the 16th and 12th centuries BC, a script called Linear B was used to write the earliest attested form of the Greek language, known as Mycenaean Greek. This writing system, unrelated to the Greek alphabet, last appeared in the 13th century BC. Inscription written in the Greek alphabet begin to emerge from the 8th century BC onward. While early samples of the Greek alphabet date from at least 775 BC, the oldest known substantial and comprehensible inscriptions, such as those on the Dipylon vase, the cup of Nestor, and cup of Acesander, date from /30 BC. It is accepted that the introduction of the alphabet occurred some time prior to these inscriptions. While earlier dates have been proposed, the Greek alphabet is commonly held to have originated some time in the late 9th or early 8th century BC, conventionally around 800 BC.

Surviving fragments of the Nestor's cup inscription juxtaposed with the proposed restoration,

The period between the use of the two writing systems, Linear B and the Greek alphabet, during which no Greek texts are attested, is known as the Greek Dark Ages. The Greeks adopted the alphabet from the earlier Phoenician alphabet, one of the closely related scripts used for the West Semitic languages, calling it «Φοινικήια γράμματα» 'Phoenician letters'. However, the Phoenician alphabet was limited to consonants. When it was adopted for writing Greek, certain consonants were adapted in order to express vowels. The use of both vowels and consonants makes Greek the first alphabet in the narrow sense, as distinguished from the abjads used in Semitic languages, which have letters only for consonants.

Early Greek alphabet on pottery in the National Archaeological Museum of Athens,

Greek initially took over all of the 22 letters of Phoenician. Five were reassigned to denote vowel sounds: the glide consonants /j/ (yodh) and /w/ (waw) were used for i («Ι», iota) and u («Υ», upsilon); the glottal stop consonant /ʔ/ (aleph) was used for a («Α», alpha); the pharyngeal /ʕ/ (ʿayin) was turned into o («Ο», omicron); and the letter for /h/ (he) was turned into e («Ε», epsilon). A doublet of waw was also borrowed as a consonant for w («Ϝ», digamma). In addition, the Phoenician letter for the emphatic glottal /ħ/ (heth) was borrowed in two different functions by different dialects of Greek: as a letter for /h/ («Η», heta) by those dialects that had such a sound, and as an additional vowel letter for the long /ɛː/ («Η», eta) by those dialects that lacked the consonant. Eventually, a seventh vowel letter for the long /ɔː/ («Ω», omega) was introduced. Greek also introduced three new consonant letters for its aspirated plosive sounds and consonant clusters: «Φ» (phi) for /pʰ/, «Χ» (chi) for /kʰ/ and «Ψ» (psi) for /ps/. In western Greek variants, «Χ» was instead used for /ks/ and «Ψ» for /kʰ/. The origin of these letters is a matter of some debate.


PhoenicianGreek
class=skin-invert
alephΑalpha,
class=skin-invert
bethΒbeta
class=skin-invert
gimelΓgamma
class=skin-invert
dalethΔdelta
class=skin-invert
heΕepsilon,
class=skin-invert
wawϜ(digamma)
class=skin-invert
zayinΖzetazd(?)
class=skin-invert
hethΗeta,
class=skin-invert
tethΘtheta
class=skin-invert
yodhΙiota,
class=skin-invert
kaphΚkappa
class=skin-invert
lamedhΛlambda
class=skin-invert
memΜmu
class=skin-invert
nunΝnu

PhoenicianGreek
class=skin-invert
samekhΞxi/ks/
class=skin-invert
ʿayinΟomicron,
class=skin-invert
peΠpi
class=skin-invert
ṣadeϺ(san)
class=skin-invert
qophϘ(koppa)
class=skin-invert
rešΡrho
class=skin-invert
šinΣsigma
class=skin-invert
tawΤtau
class=skin-invert
(waw)Υupsilon,
Φphi
Χchi
Ψpsi/ps/
Ωomega


Three of the original Phoenician letters dropped out of use before the alphabet took its classical shape: the letter Ϻ (san), which had been in competition with Σ (sigma) denoting the same phoneme /s/; the letter Ϙ (qoppa), which was redundant with Κ (kappa) for /k/, and Ϝ (digamma), whose sound value /w/ dropped out of the spoken language before or during the classical period.

Greek was originally written predominantly from right to left, just like Phoenician, but scribes could freely alternate between directions. For a time, a writing style with alternating right-to-left and left-to-right lines (called boustrophedon, literally 'ox-turning', after the manner of an ox ploughing a field) was common, until in the classical period the left-to-right writing direction became the norm. Individual letter shapes were mirrored depending on the writing direction of the current line.

Archaic variants

Archaic Greek alphabets

Distribution of "green", "red" and "blue" alphabet types, after Kirchhoff

There were initially numerous local (epichoric) variants of the Greek alphabet, which differed in the use and non-use of the additional vowel and consonant symbols and several other features. Epichoric alphabets are commonly divided into four major types according to their different treatments of additional consonant letters for the aspirated consonants (/pʰ, kʰ/) and consonant clusters (/ks, ps/) of Greek. These four types are often conventionally labelled as "green", "red", "light blue" and "dark blue" types, based on a colour-coded map in a seminal 19th-century work on the topic, «Studien zur Geschichte des griechischen Alphabets» by Adolf Kirchhoff (1867).

The "green" (or southern) type is the most archaic and closest to the Phoenician. The "red" (or western) type is the one that was later transmitted to the West and became the ancestor of the Latin alphabet, and bears some crucial features characteristic of that later development. The "blue" (or eastern) type is the one from which the later standard Greek alphabet emerged. Athens used a local form of the "light blue" alphabet type until the end of the 5th century BC, which lacked the letters Ξ and Ψ as well as the vowel symbols Η and Ω. In the Old Attic alphabet, «ΧΣ» stood for /ks/ and «ΦΣ» for /ps/. «Ε» was used for all three sounds /e, eː, ɛː/ (correspondinɡ to classical «Ε, ΕΙ, Η»), and «Ο» was used for all of /o, oː, ɔː/ (corresponding to classical «Ο, ΟΥ, Ω»). The letter «Η» (heta) was used for the consonant /h/. Some variant local letter forms were also characteristic of Athenian writing, some of which were shared with the neighboring (but otherwise "red") alphabet of Euboia: a form of «Λ» that resembled a Latin L () and a form of that resembled a Latin S ().

Phoenician model
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
class=skin-invert
Southern"green"*
Western"red"
Eastern"light blue"
"dark blue"
Classic Ionian
Modern alphabetΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩ
Sound in Ancient Greekabgdewzdhēiklmnksopskrstukspsō

*Upsilon is also derived from waw (

class=skin-invert
).

The classical twenty-four-letter alphabet that is now used to represent the Greek language was originally the local alphabet of Ionia. By the late 5th century BC, it was commonly used by many Athenians. In 403 BC, at the suggestion of the archon Eucleides, the Athenian Assembly formally abandoned the Old Attic alphabet and adopted the Ionian alphabet as part of the democratic reforms after the overthrow of the Thirty Tyrants. Because of Eucleides's role in suggesting the idea to adopt the Ionian alphabet, the standard twenty-four-letter Greek alphabet is sometimes known as the "Eucleidean alphabet". Roughly thirty years later, the Eucleidean alphabet was adopted in Boeotia and it may have been adopted a few years previously in Macedonia. By the end of the 4th century BC, it had displaced local alphabets across the Greek-speaking world to become the standard form of the Greek alphabet.

Letter names

When the Greeks adopted the Phoenician alphabet, they took over not only the letter shapes and sound values but also the names by which the sequence of the alphabet could be recited and memorized. In Phoenician, each letter name was a word that began with the sound represented by that letter; thus ʾaleph, the word for "ox", was used as the name for the glottal stop /ʔ/, bet, or "house", for the /b/ sound, and so on. When the letters were adopted by the Greeks, most of the Phoenician names were maintained or modified slightly to fit Greek phonology; thus, ʾaleph, bet, gimel became alpha, beta, gamma.

The Greek names of the following letters are more or less straightforward continuations of their Phoenician antecedents. Between Ancient and Modern Greek, they have remained largely unchanged, except that their pronunciation has followed regular sound changes along with other words (for instance, in the name of beta, ancient /b/ regularly changed to modern /v/, and ancient /ɛː/ to modern /i/, resulting in the modern pronunciation vita). The name of lambda is attested in early sources as «λάβδα» besides «λάμβδα»; in Modern Greek the spelling is often «λάμδα», reflecting pronunciation. Similarly, iota is sometimes spelled «γιώτα» in Modern Greek (ʝ is conventionally transcribed word-initially and intervocalically before back vowels and /a/). In the tables below, the Greek names of all letters are given in their traditional polytonic spelling; in modern practice, like with all other words, they are usually spelled in the simplified monotonic system.

LetterNamePronunciation
GreekPhoenician originalEnglishGreek (Ancient)Greek (Modern)English
Α«ἄλφα»alephalphaalpʰaˈalfaˈælfə
Β«βῆτα»bethbetabɛːtaˈvitaˈbiːtə, USˈbeɪtə
Γ«γάμμα»gimelgammaɡammaˈɣamaˈɡæmə
Δ«δέλτα»dalethdeltadeltaˈðeltaˈdɛltə
Η«ἦτα»hethetahɛːta, ɛːtaˈitaˈiːtə, USˈeɪtə
Θ«θῆτα»teththetatʰɛːtaˈθitaˈθiːtə, USˈθeɪtə
Ι«ἰῶτα»yodhiotaiɔːtaˈʝotaaɪˈoʊtə
Κ«κάππα»kaphkappakappaˈkapaˈkæpə
Λ«λάμβδα»lamedhlambdalambdaˈlamðaˈlæmdə
Μ«μῦ»memmumyːmimjuː; occasionally USmuː
Ν«νῦ»nunnunyːninjuː
Ρ«ῥῶ»rešrhorɔːroroʊ
Τ«ταῦ»tawtautautaftaʊ,_tɔː

In the cases of the three historical sibilant letters below, the correspondence between Phoenician and Ancient Greek is less clear, with apparent mismatches both in letter names and sound values. The early history of these letters (and the fourth sibilant letter, obsolete san) has been a matter of some debate. Here too, the changes in the pronunciation of the letter names between Ancient and Modern Greek are regular.

LetterNamePronunciation
GreekPhoenician originalEnglishGreek (Ancient)Greek (Modern)English
Ζ«ζῆτα»zayinzetazdɛːtaˈzitaˈziːtə, USˈzeɪtə
Ξ«ξεῖ, ξῖ»samekhxikseːksizaɪ,_ksaɪ
Σ«σίγμα»šinsiɡmasiɡmaˈsiɣmaˈsɪɡmə

In the following group of consonant letters, the older forms of the names in Ancient Greek were spelled with , indicating an original pronunciation with . In Modern Greek these names are spelled with .

LetterNamePronunciation
GreekEnglishGreek (Ancient)Greek (Modern)English
Ξ«ξεῖ», «ξῖ»xikseːksizaɪ,_ksaɪ
Π«πεῖ», «πῖ»pipeːpipaɪ
Φ«φεῖ», «φῖ»phipʰeːfifaɪ
Χ«χεῖ», «χῖ»chikʰeːçikaɪ
Ψ«ψεῖ», «ψῖ»psipseːpsisaɪ, psaɪ

The following group of vowel letters were originally called simply by their sound values as long vowels: ē, ō, ū, and ɔ. Their modern names contain adjectival qualifiers that were added during the Byzantine period, to distinguish between letters that had become confusable. Thus, the letters and , pronounced identically by this time, were called o mikron ("small o") and o mega ("big o"). The letter was called e psilon ("plain e") to distinguish it from the identically pronounced digraph , while, similarly, , which at this time was pronounced , was called y psilon ("plain y") to distinguish it from the identically pronounced digraph .

LetterNamePronunciation
Greek (Ancient)Greek (Medieval)Greek (Modern)EnglishGreek (Ancient)Greek (Modern)English
Ε«εἶ»«ἐ ψιλόν»«ἔψιλον»epsilonˈepsilonˈɛpsᵻlɒn, some UKɛpˈsaɪlən
Ο«οὖ»«ὀ μικρόν»«ὄμικρον»omicronˈomikronˈɒmᵻkrɒn, traditional UKoʊˈmaɪkrɒn
Υ«ὖ»«ὐ ψιλόν»«ὔψιλον»upsilon, ˈipsilonjuːpˈsaɪlən,_ˈʊpsᵻlɒn, also UKʌpˈsaɪlən, USˈʌpsᵻlɒn
Ω«ὦ»«ὠ μέγα»«ὠμέγα»omegaɔːoˈmeɣaUSoʊˈmeɪɡə, traditional UKˈoʊmᵻɡə

Some dialects of the Aegean and Cypriot have retained long consonants and pronounce ˈɣamːa and ˈkapʰa; also, «ήτα» has come to be pronounced ˈitʰa in Cypriot.

Letter shapes

Excerpt from the second-century Bankes Homer manuscript, already displaying a hand very much like the fourth-century biblical uncial

A 16th-century edition of the New Testament (Gospel of John), printed in the renaissance typeface Grecs du roi by Claude Garamond

Theocritus Idyll 1, lines 12–14, in script with abbreviations and ligatures from a caption in an illustrated edition of Theocritus. Lodewijk Caspar Valckenaer: Carmina bucolica, Leiden 1779.

Like Latin and other alphabetic scripts, Greek originally had only a single form of each letter, without a distinction between uppercase and lowercase. This distinction is an innovation of the modern era, drawing on different lines of development of the letter shapes in earlier handwriting.

The oldest forms of the letters in antiquity are majuscule forms. Besides the upright, straight inscriptional forms (capitals) found in stone carvings or incised pottery, more fluent writing styles adapted for handwriting on soft materials were also developed during antiquity. Such handwriting has been preserved especially from papyrus manuscripts in Egypt since the Hellenistic period. Ancient handwriting developed two distinct styles: uncial writing, with carefully drawn, rounded block letters of about equal size, used as a book hand for carefully produced literary and religious manuscripts, and cursive writing, used for everyday purposes. The cursive forms approached the style of lowercase letter forms, with ascenders and descenders, as well as many connecting lines and ligatures between letters.

In the 9th and 10th centuries, uncial book hands were replaced with a new, more compact writing style, with letter forms partly adapted from the earlier cursive. This minuscule style remained the dominant form of handwritten Greek into the modern era. During the Renaissance, western printers adopted the minuscule letter forms as lowercase printed typefaces, while modeling uppercase letters on the ancient inscriptional forms. The orthographic practice of using the letter case distinction for marking proper names, titles, etc. developed in parallel to the practice in Latin and other western languages.

InscriptionManuscriptModern print
ArchaicClassicalUncialMinusculeLowercaseUppercase
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αΑ
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βΒ
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γΓ
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δΔ
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εΕ
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ζΖ
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ηΗ
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θΘ
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ιΙ
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κΚ
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λΛ
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μΜ
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νΝ
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ξΞ
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οΟ
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πΠ
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ρΡ
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σ ςΣ
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τΤ
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υΥ
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φΦ
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χΧ
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ψΨ
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ωΩ

Derived alphabets

The earliest Etruscan abecedarium, from Marsiliana d'Albegna, still almost identical with contemporaneous archaic Greek alphabets

A page from the «Codex Argenteus», a 6th-century Bible manuscript in Gothic

The Greek alphabet was the model for various others:

Other uses

Use for other languages

Apart from the daughter alphabets listed above, which were adapted from Greek but developed into separate writing systems, the Greek alphabet has also been adopted at various times and in various places to write other languages. For some of them, additional letters were introduced.

Antiquity


Middle Ages


Early modern

18th-century title page of a book printed in Karamanli Turkish


In mathematics and science

Greek letters used in mathematics, science, and engineering
Greek symbols are used as symbols in mathematics, physics and other sciences. Many symbols have traditional uses, such as lower case epsilon (ε) for an arbitrarily small positive number, lower case pi (π) for the ratio of the circumference of a circle to its diameter, capital sigma (Σ) for summation, and lower case sigma (σ) for standard deviation. For many years the Greek alphabet was used by the World Meteorological Organization for naming North Atlantic hurricanes if a season was so active that it exhausted the regular list of storm names. This happened during the 2005 season (when Alpha through Zeta were used), and the 2020 season (when Alpha through Iota were used), after which the practice was discontinued. In May 2021 the World Health Organization announced that the variants of SARS-CoV-2 of the virus would be named using letters of the Greek alphabet to avoid stigma and simplify communications for non-scientific audiences.

Astronomy

Bayer designation
Greek letters are used to denote the brighter stars within each of the eighty-eight constellations. In most constellations, the brightest star is designated Alpha and the next brightest Beta etc. For example, the brightest star in the constellation of Centaurus is known as Alpha Centauri. For historical reasons, the Greek designations of some constellations begin with a lower ranked letter.

International Phonetic Alphabet

Several Greek letters are used as phonetic symbols in the International Phonetic Alphabet (IPA). Several of them denote fricative consonants; the rest stand for variants of vowel sounds. The glyph shapes used for these letters in specialized phonetic fonts is sometimes slightly different from the conventional shapes in Greek typography proper, with glyphs typically being more upright and using serifs, to make them conform more with the typographical character of other, Latin-based letters in the phonetic alphabet. Nevertheless, in the Unicode encoding standard, the following three phonetic symbols are considered the same characters as the corresponding Greek letters proper:

βbetaU+03B2voiced bilabial fricative
θthetaU+03B8voiceless dental fricative
χchiU+03C7voiceless uvular fricative

On the other hand, the following phonetic letters have Unicode representations separate from their Greek alphabetic use, either because their conventional typographic shape is too different from the original, or because they also have secondary uses as regular alphabetic characters in some Latin-based alphabets, including separate Latin uppercase letters distinct from the Greek ones.

Greek letterPhonetic letterUppercase
φphiU+03C6ɸU+0278Voiceless bilabial fricative
γgammaU+03B3ɣU+0263Voiced velar fricativeƔ U+0194
εepsilonU+03B5ɛU+025BOpen-mid front unrounded vowelƐ U+0190
αalphaU+03B1ɑU+0251Open back unrounded vowelⱭ U+2C6D
υupsilonU+03C5ʊU+028Anear-close near-back rounded vowelƱ U+01B1
ιiotaU+03B9ɩU+0269Obsolete for near-close near-front unrounded vowel now ɪƖ U+0196

The symbol in Americanist phonetic notation for the voiceless alveolar lateral fricative is the Greek letter lambda , but in the IPA. The IPA symbol for the palatal lateral approximant is , which looks similar to lambda, but is actually an inverted lowercase y.

Use as numerals

Greek numerals
Greek letters were also used to write numbers. In the classical Ionian system, the first nine letters of the alphabet stood for the numbers from 1 to 9, the next nine letters stood for the multiples of 10, from 10 to 90, and the next nine letters stood for the multiples of 100, from 100 to 900. For this purpose, in addition to the 24 letters which by that time made up the standard alphabet, three otherwise obsolete letters were retained or revived: digamma for 6, koppa for 90, and a rare Ionian letter for ss, today called sampi , for 900. This system has remained in use in Greek up to the present day, although today it is only employed for limited purposes such as enumerating chapters in a book, similar to the way Roman numerals are used in English. The three extra symbols are today written as , and . To mark a letter as a numeral sign, a small stroke called keraia is added to the right of it.


Αʹ αʹalpha1
Βʹ βʹbeta2
Γʹ γʹgamma3
Δʹ δʹdelta4
Εʹ εʹepsilon5
ϛʹdigamma (stigma)6
Ζʹ ζʹzeta7
Ηʹ ηʹeta8
Θʹ θʹtheta9

Ιʹ ιʹiota10
Κʹ κʹkappa20
Λʹ λʹlambda30
Μʹ μʹmu40
Νʹ νʹnu50
Ξʹ ξʹxi60
Οʹ οʹomicron70
Πʹ πʹpi80
ϟʹkoppa90

Ρʹ ρʹrho100
Σʹ σʹsigma200
Τʹ τʹtau300
Υʹ υʹupsilon400
Φʹ φʹphi500
Χʹ χʹchi600
Ψʹ ψʹpsi700
Ωʹ ωʹomega800
ϡʹsampi900


Use by student fraternities and sororities

In North America, many college fraternities and sororities are named with combinations of Greek letters, and are hence also known as "Greek letter organizations". This naming tradition was initiated by the foundation of the Phi Beta Kappa society at the College of William and Mary in 1776. The name of this fraternal organization is an acronym for the ancient Greek phrase «Φιλοσοφία Βίου Κυβερνήτης» (), which means "Love of wisdom, the guide of life" and serves as the organization's motto. Sometimes early fraternal organizations were known by their Greek letter names because the mottos that these names stood for were secret and revealed only to members of the fraternity.

Different chapters within the same fraternity are almost always (with a handful of exceptions) designated using Greek letters as serial numbers. The founding chapter of each organization is its A chapter. As an organization expands, it establishes a B chapter, a Γ chapter, and so on and so forth. In an organization that expands to more than 24 chapters, the chapter after Ω chapter is AA chapter, followed by AB chapter, etc. Each of these is still a "chapter Letter", albeit a double-digit letter just as 10 through 99 are double-digit numbers. The Roman alphabet has a similar extended form with such double-digit letters when necessary, but it is used for columns in a table or chart rather than chapters of an organization.

Glyph variants

Some letters can occur in variant shapes, mostly inherited from medieval minuscule handwriting. While their use in normal typography of Greek is purely a matter of font styles, some such variants have been given separate encodings in Unicode.


Computer encodings

For computer usage, a variety of encodings have been used for Greek online, many of them documented in .

The two principal ones still used today are ISO/IEC 8859-7 and Unicode. ISO 8859-7 supports only the monotonic orthography; Unicode supports both the monotonic and polytonic orthographies.

ISO/IEC 8859-7

For the range A0–FF (hex), it follows the Unicode range 370–3CF (see below) except that some symbols, like ©, ½, § etc. are used where Unicode has unused locations. Like all ISO-8859 encodings, it is equal to ASCII for 00–7F (hex).

Greek in Unicode

Greek script in Unicode
Unicode supports polytonic orthography well enough for ordinary continuous text in modern and ancient Greek, and even many archaic forms for epigraphy. With the use of combining characters, Unicode also supports Greek philology and dialectology and various other specialized requirements. Most current text rendering engines do not render diacritics well, so, though alpha with macron and acute can be represented as U+03B1 U+0304 U+0301, this rarely renders well: «ᾱ́».

There are two main blocks of Greek characters in Unicode. The first is "Greek and Coptic" (U+0370 to U+03FF). This block is based on ISO 8859-7 and is sufficient to write Modern Greek. There are also some archaic letters and Greek-based technical symbols.

This block also supports the Coptic alphabet. Formerly, most Coptic letters shared codepoints with similar-looking Greek letters; but in many scholarly works, both scripts occur, with quite different letter shapes, so as of Unicode 4.1, Coptic and Greek were disunified. Those Coptic letters with no Greek equivalents still remain in this block (U+03E2 to U+03EF).

To write polytonic Greek, one may use combining diacritical marks or the precomposed characters in the "Greek Extended" block (U+1F00 to U+1FFF).

Combining and letter-free diacritics

Combining and spacing (letter-free) diacritical marks pertaining to Greek language:

CombiningSpacingSampleDescription
U+0300U+0060( « ̀ »)"varia / grave accent"
U+0301U+00B4, U+0384( « ́ »)"oxia / tonos / acute accent"
U+0304U+00AF( ̄ )"macron"
U+0306U+02D8( ̆ )"vrachy / breve"
U+0308U+00A8( ̈ )"dialytika / diaeresis"
U+0313U+02BC( ̓ )"psili / comma above" (spiritus lenis)
U+0314U+02BD( ̔ )"dasia / reversed comma above" (spiritus asper)
U+0342( ͂ )"perispomeni" (circumflex)
U+0343( ̓ )"koronis" (= U+0313)
U+0344U+0385( ̈́ )"dialytika tonos" (deprecated, = U+0308 U+0301)
U+0345U+037A( ͅ )"ypogegrammeni / iota subscript".

Encodings with a subset of the Greek alphabet

IBM code pages 437, 860, 861, 862, 863, and 865 contain the letters ΓΘΣΦΩαδεπστφ (plus β as an alternative interpretation for ß).

See also


Notes


References


Bibliography


External links