derogation vs usurer

derogation and usurer both are nouns.

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

derogation (noun)	usurer (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	someone who lends money at excessive rates of interest
a communication that belittles somebody or something