selfish person vs derogation

selfish person and derogation both are nouns.

Word	Noun	Adjective	Verb	Adverb
selfish person	Yes	No	No	No
derogation	Yes	No	No	No

selfish person (noun)	derogation (noun)
a person who is unusually selfish	(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