CALUMNIATION
defamation, calumny, calumniation, obloquy, traducement, hatchet job
(noun) a false accusation of an offense or a malicious misrepresentation of someone’s words or actions
Source: WordNet® 3.1
Noun
calumniation (countable and uncountable, plural calumniations)
A false accusation, or a malicious statement, about someone.
Source: Wiktionary
Ca*lum`ni*a"tion, n.
Definition: False accusation of crime or offense, or a malicious and false
representation of the words or actions of another, with a view to
injure his good name.
The calumniation of her principal counselors. Bacon.
Source: Webster’s Unabridged Dictionary 1913 Edition