To make maliciously or knowingly false statements about. See Synonyms at malign.(verb-transitive)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "calumniate" in a sentence
""ye are spoken against," omitting the rest. falsely accuse -- "calumniate"; the Greek expresses malice shown in deeds as well as in words."
"Soon Mr. Figes's lawyer was running around threatening libel actions against anyone who dared to calumniate his client."
"The Masonic religion should be, by all of its initiates of the higher degrees, maintained in the purity of the Luciferian doctrine. if Lucifer were not God, would Adonay (the God of the Christians) whose deeds prove his cruelty perfidy, and hatred of man, Barbarism and repulsion for science, would Adonay and his priests calumniate him?"