derogation vs perve

derogation and perve both are nouns.

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

derogation (noun)	perve (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	a person whose behavior deviates from what is acceptable especially in sexual behavior
a communication that belittles somebody or something

derogation (verb)	perve (verb)
	look at with amorous intentions