ὅνυ
ὅνυ, and for ὅδε, declined like ὁ with addition of -νυ, nom. sg. masc.
A). ὅνυ Inscr.Cypr. 141 H., acc. τόνυ ib. 140H., dat. τῷνυ Schwyzer 664.11 (Orchom. , iv B. C.), acc. pl. neut. τάνυ IG 5(2).3.14 (Tegea, iv B. C.), gen. τῶννυ SIG 306.59 (ibid., iv B. C.), IG 5(2).262.23 (Mantinea, v B. C.), dat. pl. fem. ταῖννυ SIG 306.30 ; also, with -νυν for -νυ, acc. sg. fem. τάννυν, acc. pl. masc. τόσνυν, ib. 559.48 , 49 (Megalopolis, found at Mae., iii B. C.).