degenerate
From LSJ
adj.
P. and V. χείρων, κακίων, P. καταδεέστερος.
Base: Ar. and P. ἀγεννής.
v. intrans.
P. ἐκπίπτειν, ἐξίστασθαι, ἀποκλίνειν, ἐπὶ τὸ χεῖρον μεταβάλλεσθαι.
He did not degenerate into inaction: P. οὐκ ἐπὶ τὸ ῥᾳθυμεῖν ἀπέκλινεν (Dem. 13).