stumbler vs derogation

stumbler and derogation both are nouns.

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

stumbler (noun)	derogation (noun)
a walker or runner who trips and almost falls	(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law
someone who makes mistakes because of incompetence	a communication that belittles somebody or something