calumny
cal.um.ny \'kal-(y)*m-ne-\ n [MF & L; MF calomnie, fr. L calumnia, fr. calvi to deceive; a]kin to OE ho-l calumny, Gk ke-lein to beguile 1: the malicious uttering of false charges or misrepresentations calculated to damage another's reputation 2: a misrepresentation intended to blacken another's reputation