calumniate /kə-lumˈni-āt/ transitive verb

1. To accuse falsely
2. To slander

To spread false or slanderous reports

calumniāˈtion noun

calumˈniātor noun

calumˈniātory or calumˈnious adjective

1. Of the nature of calumny
2. Slanderous

calumˈniously adverb