δυάς

Ancient Greek

Etymology

Derived from δύο (dúo) +‎ -ᾰ́ς (-ás); compare τριάς (triás), τετράς (tetrás), δεκάς (dekás), χιλιάς (khiliás), μυριάς (muriás).

Pronunciation

 

• IPA^(key): /dy.ás/ → /ðyˈas/ → /ðiˈas/

• (5^th BCE Attic) IPA^(key): /dy.ás/
• (1^st CE Egyptian) IPA^(key): /dyˈas/
• (4^th CE Koine) IPA^(key): /ðyˈas/
• (10^th CE Byzantine) IPA^(key): /ðyˈas/
• (15^th CE Constantinopolitan) IPA^(key): /ðiˈas/

Noun

δῠᾰ́ς • (duás) f (genitive δῠᾰ́δος); third declension

1. the number two
2. a group of two; couple, pair, duo, twosome, dyad

Inflection

Third declension of ἡ δῠᾰ́ς; τῆς δῠᾰ́δος (Attic)

Case / #	Singular	Dual	Plural
Nominative	ἡ δῠᾰ́ς hē duás	τὼ δῠᾰ́δε tṑ duáde	αἱ δῠᾰ́δες hai duádes
Genitive	τῆς δῠᾰ́δος tês duádos	τοῖν δῠᾰ́δοιν toîn duádoin	τῶν δῠᾰ́δων tôn duádōn
Dative	τῇ δῠᾰ́δῐ têi duádi	τοῖν δῠᾰ́δοιν toîn duádoin	ταῖς δῠᾰ́σῐ / δῠᾰ́σῐν taîs duási(n)
Accusative	τὴν δῠᾰ́δᾰ tḕn duáda	τὼ δῠᾰ́δε tṑ duáde	τᾱ̀ς δῠᾰ́δᾰς tā̀s duádas
Vocative	δῠᾰ́ς duás	δῠᾰ́δε duáde	δῠᾰ́δες duádes
Notes:	This table gives Attic inflectional endings. For declension in other dialects, see Appendix:Ancient Greek dialectal declension. Nominative singular -ς (-s) arose by reduction of the original cluster *-ds.

Descendants

• → English: dyad
• → French: dyade

References

• “δυάς”, in Liddell & Scott (1940) A Greek–English Lexicon, Oxford: Clarendon Press
• “δυάς”, in Liddell & Scott (1889) An Intermediate Greek–English Lexicon, New York: Harper & Brothers
• δυάς in Bailly, Anatole (1935) Le Grand Bailly: Dictionnaire grec-français, Paris: Hachette
• δυάς in the Diccionario Griego–Español en línea (2006–2024)
• Woodhouse, S. C. (1910) English–Greek Dictionary: A Vocabulary of the Attic Language‎^[1], London: Routledge & Kegan Paul Limited.
  • figure idem, page 319.
  • two idem, page 904.