foulness vs derogation

foulness and derogation both are nouns.

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

foulness (noun)	derogation (noun)
the attribute of having a strong offensive smell	(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law
(of weather) the badness of the weather	a communication that belittles somebody or something
a state characterized by foul or disgusting dirt and refuse
disgusting wickedness and immorality