ἔνος
From LSJ
τέχνη δὲ ἄνευ ἀλκῆς οὐδὲν ὠφελεῖ (Thucydides 2.87.4.6) → η τέχνη απαιτεί κουράγιο, skill without heart is useless
English (LSJ)
(A), ὁ,
A year, Lyd.Mens.4.1, Hsch.
ἔνος (B), η, ον, found only in oblique cases of fem., gen. ἔνης, Ep. ἔνηφι, dat. ἔνῃ, acc. ἔνην, in the sense of εἰς τρίτην,
A the day after tomorrow: ἔς τ' αὔριον ἔς τε ἔνηφιν Hes.Op.410 (v.l. ἔς τ' ἔννηφι); gen. ἔνης Ar.Ec.796, Dor. ἔνας Theoc.18.14; εἰς ἔνην Ar.Ach.172; αὔριον <καὶ> τῇ ἔνῃ Antipho 6.21; ἐς ἔνης ἡ prob. l. (for ἐς ἔνης ἡ σή) in D.C. 47.41; cf. ἔναρ· ἐς τρίτην (Lacon.), Hsch., and v. ἐπέναρ. (Demonstr. stem eno- (ono-), cf. Umbr. enom 'tum', Slav. on[ucaron] 'he'.)