ἀποστατεῖν

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

Source

Greek > English (Woodhouse Verbs Reversed)

(see also: ἀποστατέω) be absent, be distant, be far, leave in the lurch, sland aside, stand aloof, stand apart