de·bauch / diˈbôch/ • v. [tr.] destroy or debase the moral purity of; corrupt. ∎ dated seduce (a woman).• n. a bout of excessive indulgence in sensual pleasures, esp. eating and drinking. ∎  the habit or practice of such indulgence; debauchery: his life had been spent in debauch.DERIVATIVES: de·bauch·er n.

debauch †seduce from allegiance XVI; seduce from virtue or chastity XVII. — F. débaucher, OF. des-, f. des- DE- 6 + an el. of unkn. orig.
SO debauch sb., debauchee, debauchery XVII.