plagiariser vs derogation

plagiariser and derogation both are nouns.

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

plagiariser (noun)	derogation (noun)
someone who uses another person's words or ideas as if they were his own	(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