defame (v.) Look up defame at Dictionary.com
c. 1300, from Old French defamer (13c., Modern French diffamer), from Medieval Latin defamare, from Latin diffamare "to spread abroad by ill report, make a scandal of," from dis- suggestive of ruination + fama "a report, rumor" (from PIE root *bha- (2) "to speak, tell, say"). Related: Defamed; defaming.