nonstarter vs derogation

nonstarter and derogation both are nouns.

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

nonstarter (noun)	derogation (noun)
a horse that fails to run in a race for which it has been entered	(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law
a person with a record of failing; someone who loses consistently	a communication that belittles somebody or something