derogation vs folly

derogation and folly both are nouns.

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

derogation (noun)	folly (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	foolish or senseless behavior
a communication that belittles somebody or something	a stupid mistake
	the trait of acting stupidly or rashly
	the quality of being rash and foolish