ἐξαδυνατέω

A. to be quite unable or incapable, c.inf., Arist. Pol. 1282b4, Plu. Alc. 23; πρός τι Arist. GA 785a10: abs., Id. HA 575a21, Plb. 1.58.5; τῷ σώματι Plu. Mar. 33; ἐ. τὸ γεννᾶν generation becomes impossible, Thphr. CP 1.16.3.