mudslinger vs derogation

mudslinger and derogation both are nouns.

Word	Noun	Adjective	Verb	Adverb
mudslinger	Yes	No	No	No
derogation	Yes	No	No	No

mudslinger (noun)	derogation (noun)
one who spreads real or alleged scandal about another (usually for political advantage)	(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law
	a communication that belittles somebody or something