ἀσθενεῖν
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
Greek > English (Woodhouse Verbs Reversed)
(see also ἀσθενέω): be an invalid, be delicate, be feeble, be ill, be in ill health, be indisposed, be infirm, be poorly, be sick, be weak