rounder vs derogation

rounder and derogation both are nouns.

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

rounder (noun)	derogation (noun)
a tool for rounding corners or edges	(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law
a dissolute person; usually a man who is morally unrestrained	a communication that belittles somebody or something