ἀποπεραίνω
From LSJ
οἵ γε καὶ ἐν τῷ παρόντι ἀντιπάλως μᾶλλον ἢ ὑποδεεστέρως τῷ ναυτικῷ ἀνθώρμουν → whose navy, even as it was, faced the Athenian more as an equal than as an inferior
English (LSJ)
A complete, finish, in fut. ἀποπερᾰνῶ, Hsch.
German (Pape)
[Seite 318] ganz zu Ende führen, vollenden, Suid. ἀποπερατίζω, dasselbe, Schol. Ar. Nub. 1456.