persona non grata vs derogation

persona non grata and derogation both are nouns.

Word	Noun	Adjective	Verb	Adverb
persona non grata	Yes	No	No	No
derogation	Yes	No	No	No

persona non grata (noun)	derogation (noun)
a person who for some reason is not wanted or welcome	(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law
a diplomat who is unacceptable to the government to which he is sent	a communication that belittles somebody or something