derogation vs pruriency

derogation and pruriency both are nouns.

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

derogation (noun)	pruriency (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	feeling morbid sexual desire or a propensity to lewdness
a communication that belittles somebody or something