Denigrate

глагол клеветать, наговаривать, оговаривать, порочить, чернить Синоним(ы): slander, calumniate

Большой англо-русский словарь

Denigrate

transitive verb (-grated; -grating) Etymology: Latin denigratus, past participle of denigrare, from de- + nigrare to blacken, from nigr-, niger black 1. to attack the reputation of; defame Example: denigrate one's opponents 2. to deny the importance or validity of; belittle Example: denigrate their achievementsdenigration noundenigrative adjectivedenigrator noundenigratory adjective

Merriam-Webster's Collegiate Dictionary