ἐπιδιαφθείρω
From LSJ
ἢν εὑρίσκῃ πλέω τε καὶ μέζω τὰ ἀδικήματα ἐόντα τῶν ὑπουργημάτων, οὕτω τῷ θυμῷ χρᾶται → it happens that the crimes are greater and more numerous than the services, when one gives way to anger
English (LSJ)
destroy besides, ruin besides, in Pass., Ph. ap. Eus.PE8.14; become corrupt, Gal.8.42.
German (Pape)
[Seite 938] noch dazu verderben, Philo u. a. Sp.