turpitude

noun

Etymology: Borrowed from Middle French turpitude, from Latin turpitūdō (“baseness, infamy”), from turpis (“foul, base”).

1. Inherent baseness, depravity or wickedness; corruptness and evilness.

   “As for the moral turpitude that man unveiled to me, even with tears of penitence, I cannot, even in memory, dwell on it without a start of horror.”

2. An act evident of such depravity.