
verb (used with object), ca·lum·ni·at·ed, ca·lum·ni·at·ing.
- to make false and malicious statements about; slander.
verb
- (tr) to slander
1690s, from Latin calumniator, agent noun from calumniari (see calumniate (v.)).
1550s, from Latin calumniatus, past participle of calumniari “to accuse falsely,” from calumnia “slander, false accusation” (see calumny). Related: Calumniated; calumniating.