κατειπεῖν

From LSJ

Τὸ νικᾶν αὐτὸν αὑτὸν πασῶν νικῶν πρώτη τε καὶ ἀρίστη → The first and best victory is to conquer self.

Plato, Laws, 626e

Greek > English (Woodhouse Verbs Reversed)

(see also κατεῖπον): betray, publish, denounce one person to another, inform against