defamer

de·fame

D0089400 (dĭ-fām′)tr.v. de·famed, de·fam·ing, de·fames 1. To damage the reputation, character, or good name of (someone) by slander or libel. See Synonyms at malign.2. Archaic To disgrace.

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[Middle English defamen, from Old French defamer, from Medieval Latin dēfāmāre, alteration of Latin diffāmāre, to spread news of, slander : dis-, abroad, apart; see dis- + fāma, rumor, reputation; see bhā- in Indo-European roots.]

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de·fam′er n.

Thesaurus

Noun

1.

defamer - one who attacks the reputation of another by slander or libelbackbiter, libeler, maligner, slanderer, traducer, vilifierdepreciator, detractor, disparager, knocker - one who disparages or belittles the worth of something