De‐prave″ (dē̍‐prāv″), v. t. [imp. & p. p.Depraved (–prāvd″); p. pr. & vb. n.Depraving.] [L. depravare, depravatum; de- + pravus crooked, distorted, perverse, wicked.] 1. To speak ill of; to depreciate; to malign; to revile.
And thou knowest, conscience, I came not to chide
Nor deprave thy person with a proud heart. Piers Plowman.
2. To make bad or worse; to vitiate; to corrupt.
Whose pride depraves each other better part. Spenser.
Syn. — To corrupt; vitiate; contaminate; pollute.