† deturˈpationObs. [n. of action f.prec.: see -ation.] Defilement, debasement. 1490Caxton Eneydos xxviii. 110 Alle the deturpacyons and the hardenesse of olde age.1660Jer. Taylor Duct. Dubit. ii. iii. rule xiv. §29 The corrections and deturpations and mistakes of transcribers.