is a specific kind of: depreciation, derogation, disparagement.

is a broader term that covers: assassination, blackwash, character assassination | malignment, smear, vilification | libel | slander | name calling, names | epithet, name.

derivation: asperse, besmirch, calumniate, defame, denigrate, slander, smear, smirch, sully | badmouth, drag through the mud, malign, traduce | calumniatory, calumnious, defamatory, denigrating, denigrative, denigratory, libellous, libelous, slanderous.