perisher vs derogation

perisher and derogation both are nouns.

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

perisher (noun)	derogation (noun)
bounder	(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