disciplinarian vs derogation

disciplinarian and derogation both are nouns.

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

disciplinarian (noun)	derogation (noun)
someone who demands exact conformity to rules and forms	(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