derogation vs supplanter

derogation and supplanter both are nouns.

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

derogation (noun)	supplanter (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	one who wrongfully or illegally seizes and holds the place of another
a communication that belittles somebody or something