backseat driver vs derogation

backseat driver and derogation both are nouns.

Word	Noun	Adjective	Verb	Adverb
backseat driver	Yes	No	No	No
derogation	Yes	No	No	No

backseat driver (noun)	derogation (noun)
a meddler who insists on giving unwanted advice	(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law
	a communication that belittles somebody or something