imbecile vs derogation

imbecile and derogation both are nouns.

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

imbecile (noun)	derogation (noun)
a person of subnormal intelligence	(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

imbecile (adjective)	derogation (adjective)
having a mental age of three to seven years