depraver


de·prave

D0145100 (dĭ-prāv′)tr.v. de·praved, de·prav·ing, de·praves To debase, especially morally; corrupt. See Synonyms at corrupt.
[Middle English depraven, to corrupt, from Old French depraver, from Latin dēprāvāre : dē-, de- + prāvus, crooked.]
dep′ra·va′tion (dĕp′rə-vā′shən) n.de·prav′er n.