derogation vs kvetch

derogation and kvetch both are nouns.

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

derogation (noun)	kvetch (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	(Yiddish) a nagging complaint
a communication that belittles somebody or something	(Yiddish) a constant complainer

derogation (verb)	kvetch (verb)
	express complaints, discontent, displeasure, or unhappiness