instigant vs derogation

instigant and derogation both are nouns.

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

instigant (noun)	derogation (noun)
someone who deliberately foments trouble	(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