εἷς

See also: Appendix:Variations of "εις"

Ancient Greek

**Ancient Greek numbers ^(edit)**
	10
	α’ 1	2 →	10 →
Cardinal: εἷς (heîs) Ordinal: πρῶτος (prôtos) Adverbial: ᾰ̔́πᾰξ (hắpăx) Collective: μονᾰ́ς (monắs)

εἷς • (heîs) (ordinal πρῶτος, adverbial ᾰ̔́πᾰξ)

First and third declension of εἷς, μῐ́ᾰ, ἕν (Attic)

Number	Singular
Case/Gender	Masculine	Feminine	Neuter
Nominative	εἷς heîs	μῐ́ᾰ mĭ́ă	ἕν hén
Genitive	ἑνός henós	μῐᾶς mĭâs	ἑνός henós
Dative	ἑνῐ́ henĭ́	μῐᾷ mĭāî	ἑνῐ́ henĭ́
Accusative	ἕνᾰ hénă	μῐ́ᾰν mĭ́ăn	ἕν hén
Vocative	εἷς heîs	μῐ́ᾰ mĭ́ă	ἕν hén
Notes:	This table gives Attic inflectional endings. For declension in other dialects, see Appendix:Ancient Greek dialectal declension.

First and third declension of εἷς, ῐ̓́ᾰ / ῐ̓́η, ἕν (Epic)

Number	Singular
Case/Gender	Masculine	Feminine	Neuter
Nominative	εἷς ἕεις heîs héeis	ῐ̓́ᾰ ῐ̓́η ĭ́ă ĭ́ē	ἕν hén
Genitive	ἑνός henós	ῐ̓ῆς ĭês	ἑνός henós
Dative	ἑνῐ́ henĭ́	ῐ̓ῇ ĭēî	ἑνῐ́ henĭ́
Accusative	ἕνᾰ hénă	ῐ̓́ᾰν ῐ̓́ην ĭ́ăn ĭ́ēn	ἕν hén
Vocative	εἷς ἕεις heîs héeis	ῐ̓́ᾰ ῐ̓́η ĭ́ă ĭ́ē	ἕν hén
Notes:	Dialects other than Attic are not well attested. Some forms may be based on conjecture. Use with caution.

First and third declension of εἷς, μῐ́ᾰ / μῐ́η, ἕν (Ionic)

Number	Singular
Case/Gender	Masculine	Feminine	Neuter
Nominative	εἷς heîs	μῐ́ᾰ μῐ́η mĭ́ă mĭ́ē	ἕν hén
Genitive	ἑνός henós	μῐῆς mĭês	ἑνός henós
Dative	ἑνῐ́ henĭ́	μῐῇ mĭēî	ἑνῐ́ henĭ́
Accusative	ἕνᾰ hénă	μῐ́ᾰν μῐ́ην mĭ́ăn mĭ́ēn	ἕν hén
Vocative	εἷς heîs	μῐ́ᾰ μῐ́η mĭ́ă mĭ́ē	ἕν hén
Notes:	Dialects other than Attic are not well attested. Some forms may be based on conjecture. Use with caution.

Byzantine Greek: ἕνας (hénas)
- Greek: ένας (énas), ένα (éna), μία (mía)
- Mariupol Greek: э́на (éna), э́нас (énas)

^ Νέον ορθογραφικόν ερμηνευτικόν λεξικόν, Δημήτριος Δημητράκος, Athens 1957, page 484.
^ Beekes, Robert S. P. (2010), “εἷς”, in Etymological Dictionary of Greek (Leiden Indo-European Etymological Dictionary Series; 10), with the assistance of Lucien van Beek, Leiden, Boston: Brill, →ISBN, page 394

“εἷς”, in Liddell & Scott (1940), A Greek–English Lexicon, Oxford: Clarendon Press
“εἷς”, in Autenrieth, Georg (1891), A Homeric Dictionary for Schools and Colleges, New York: Harper and Brothers
εἷς in Bailly, Anatole (1935), Le Grand Bailly: Dictionnaire grec-français, Paris: Hachette
Bauer, Walter et al. (2001), A Greek–English Lexicon of the New Testament and Other Early Christian Literature, Third edition, Chicago: University of Chicago Press
εἷς in the Diccionario Griego–Español en línea (2006–2026)
“εἷς”, in Slater, William J. (1969), Lexicon to Pindar, Berlin: Walter de Gruyter
G1520 in Strong, James (1979), Strong’s Exhaustive Concordance to the Bible
Woodhouse, S. C. (1910), English–Greek Dictionary: A Vocabulary of the Attic Language‎^[1], London: Routledge & Kegan Paul Limited.
- isolated idem, page 461.
- single-handed idem, page 779.
- singly idem, page 779.
εἷς, in ΛΟΓΕΙΟΝ [Logeion] Dictionaries for Ancient Greek and Latin (in English, French, Spanish, German, Dutch and Chinese), University of Chicago, since 2011