ὅνυ
From LSJ
ὦ θάνατε, σωφρόνισμα τῶν ἀγνωμόνων → o death, chastener of the foolish | ο death, warning to the arrogant
English (LSJ)
Arc. and Cypr. for ὅδε, declined like ὁ with addition of -νυ, nom. sg. masc. A ὅνυ Inscr.Cypr.141 H., acc. τόνυ ib.140H., dat. τῷνυ Schwyzer664.11 (Orchom. Arc., iv B. C.), acc. pl. neut. τάνυ IG5(2).3.14 (Tegea, iv B. C.), gen. τῶννυ SIG306.59 (ibid., iv B. C.), IG5(2).262.23 (Mantinea, v B. C.), dat. pl. fem. ταῖννυ SIG306.30 ; also, with -νυν for -νυ, acc. sg. fem. τάννυν, acc. pl. masc. τόσνυν, ib.559.48,49 (Megalopolis, found at Magn. Mae., iii B. C.).