incompetent vs derogation

incompetent and derogation both are nouns.

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

incompetent (noun)	derogation (noun)
someone who is not competent to take effective action	(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

incompetent (adjective)	derogation (adjective)
not qualified or suited for a purpose
legally not qualified or sufficient
not doing a good job
not meeting requirements
showing lack of skill or aptitude