The word is malign. Pronounced \muh-LAHYN\. This word is a hybrid, either verb or adjective, and is defined as
VERB: To speak harmful untruths about; speak evil of; slander; defame. ADJECTIVE: Evil in effect; pernicious; baleful; injurious
Used in a sentence: (verb) As Jesus was being prosecuted by the priests, they sought people to malign His character in order to justify His condemnation. (adjective) The malign intentions of the priests were a necessary catalyst to invoke God’s purpose thus bringing salvation to us all.
(Matthew ch. 26, 27, 28)