derogation vs knave

derogation and knave both are nouns.

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

derogation (noun)	knave (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	one of four face cards in a deck bearing a picture of a young prince
a communication that belittles somebody or something	a deceitful and unreliable scoundrel