derogation vs wrecker

derogation and wrecker both are nouns.

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

derogation (noun)	wrecker (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	a truck equipped to hoist and pull wrecked cars (or to remove cars from no-parking zones)
a communication that belittles somebody or something	someone who commits sabotage or deliberately causes wrecks
	someone who demolishes or dismantles buildings as a job