Lewis & Short

ăpostăto, āre, v. n., = ἀποστατέω, to forsake one’s religion, to apostatize (eccl. Lat.): apostatare a Deo, Vulg. Eccli. 10, 14: apostatare faciunt sapientes, ib. ib. 19, 2; Cypr. Ep. 1, 2.