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Verb: calumniate  ku'lúm-nee,eyt
Usage: formal
  1. Charge falsely or with malicious intent; attack the good name and reputation of someone
    - defame, slander, smirch, asperse, denigrate, smear, sully, besmirch

Derived forms: calumniates, calumniating, calumniated

Type of: accuse, charge