v. t. [ L. denigrare; de- + nigrare to blacken, niger black. ] 1. To blacken thoroughly; to make very black. Boyle. [ 1913 Webster ]
2. Fig.: To blacken or sully; to defame. [ R. ] [ 1913 Webster ]
To denigrate the memory of Voltaire. Morley. [ 1913 Webster ]