mimicker vs derogation

mimicker and derogation both are nouns.

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

mimicker (noun)	derogation (noun)
someone who mimics (especially an actor or actress)	(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