ἐπιδιαφθείρω
From LSJ
χαῖρ', ὦ μέγ' ἀχρειόγελως ὅμιλε, ταῖς ἐπίβδαις, τῆς ἡμετέρας σοφίας κριτὴς ἄριστε πάντων → all hail, throng that laughs untimely on the day after the festival, best of all judges of our poetic skill
English (LSJ)
A destroy, 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.