δύο, δύω, indeclinable in Homer: two; proverb, σύν τε δύ̓ ἐρχομένω καί τε πρὸ ὃ τοῦ ἐνόησεν, two together going, hasteneth the knowing (lit. one notes before the other), Il. 10.224.
δύο[ῠ], also δύω in Ep., Eleg. and late, SIG1231 (Nicomedia, iii/ iv A. D.), not in Ion. Inscrr. nor in Trag. (δύο ῥοπάσ shd. be read in E.Hel.1090), nor in Att. Prose or Inscrr.: Lacon. acc. δύεIG5(1).1; Thess. fem. δύασ ib.9(2).517: gen. and dat. δυοῖνHp.Vict.1.3, but f.l. in Hdt.1.11,91 [used as monos. in S.OT640, cf. δώδεκα for δυώδ-]; later Att. also δυεῖν (esp. in fem. gen.) found in codd. of E.El. 536, cited fr. Th. by Ael.Dion.(?) Fr.372, cf. 1.20 (cod. Laur.); Boeot. δουῖνCorinn.Supp.2.54; later δυσί, δυσὶν ἡμέραισTh.8.101 codd., δυσὶν ἡμέρῃσι v.l. in Hp.
Acut.(Sp.
)67; δυοῖν ὄμμασι καὶ δυσὶν ἀκοαῖσArist.Pol.1287b27, cf.Men.699, SIG344.26 (Teos, iv B.C.), etc.: early Att. Inscrr. have δυοῖνIG12.3.10, al., later δυεῖνSIG2587.286, IG22.463.78, al., from cent. iii on δυσί ib.1028.27, al.; Ion. gen. δυῶνGDI5653d9 (Chios), Hdt.1.94, 130, etc., dat. δυοῖσι ib. 32,7.104; δυῶν also Dor., Leg.Gort.1.40, Tab.Heracl.1.139; δυοῖσLeg.Gort.7.46.— Used indecl., like ἄμφω, by Hom. (who has no gen. or dat. δυοῖν), τῶν δύο μοιράωνIl.10.253; δύω κανόνεσσι 13.407, etc.; so in Hdt. and Att., δύο νεῶνHdt.8.82; δύο ζεύγεσιId.3.130; δύο νεῶνTh.3.89; δύο πλέθρωνX.An.3.4.9; with dual, δύο μναῖν dub. l. Id.Mem. 2.5.2; but not in Trag. and rare in Com., ἔτεσιν δύοAlex.105; δύ̓ ἔτεσινDamox.2.3: not in Att. Inscrr. before the Roman period, IG3.1443, al.:—
two
, Il.1.16, etc.; in Hom., δύο and δύω are sts. joined with plural Nouns, δύο δ' ἄνδρεσ 18.498, al.; also in Trag., δύο κριούσS.Aj.237 (lyr.); in Att. Prose, δύο τέχνασPl.Grg.464b; but δυοῖν is rare with plural Nouns, ὀρθοστάταις δυοῖνIG2.1054.64; ἕνα καὶ δύο one or