εἷς

See also: Appendix:Variations of "εις"

Ancient Greek

**Ancient Greek numbers ^(edit)**
	10
	αʹ 1	2 →	10 →
Cardinal: εἷς (heîs) Ordinal: πρῶτος (prôtos) Adverbial: ᾰ̔́πᾰξ (hápax) Collective: μονᾰ́ς (monás)

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

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

Number	Singular
Case/Gender	Masculine	Feminine	Neuter
Nominative	εἷς heîs	μίᾰ mía	ἕν hén
Genitive	ἑνός henós	μιᾶς miâs	ἑνός henós
Dative	ἑνί hení	μιᾷ miâi	ἑνί hení
Accusative	ἕνᾰ héna	μίᾰν mían	ἕν hén
Vocative	—	—	—
Notes:	This table gives Attic inflectional endings. For declension in other dialects, see Appendix:Ancient Greek dialectal declension.

First and third declension of εἷς, ἴᾰ, ἕν (Epic, Aeolic, Ionic)

Number	Singular
Case/Gender	Masculine	Feminine	Neuter
Nominative	εἷς heîs	ἴᾰ ía	ἕν hén
Genitive	ἑνός henós	ἰῆς iês	ἑνός henós
Dative	ἑνί hení	ἰῇ iêi	ἑνί hení
Accusative	ἕνᾰ héna	ἴᾰν ían	ἕν hén
Vocative	—	—	—
Notes:	This table gives Attic inflectional endings. For declension in other dialects, see Appendix:Ancient Greek dialectal declension.

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

^ Νέον ορθογραφικόν ερμηνευτικόν λεξικόν, Δημήτριος Δημητράκος, Athens 1957, page 484.

“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 (2006–2024)
“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, London: Routledge & Kegan Paul Limited.
- isolated idem, page 461.
- single-handed idem, page 779.
- singly idem, page 779.