derogation vs nag

derogation and nag both are nouns.

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

derogation (noun)	nag (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	an old or over-worked horse
a communication that belittles somebody or something	someone (especially a woman) who annoys people by constantly finding fault

derogation (verb)	nag (verb)
	remind or urge constantly
	bother persistently with trivial complaints
	worry persistently