derogation vs arriviste

derogation and arriviste both are nouns.

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

derogation (noun)	arriviste (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	a person who has suddenly risen to a higher economic status but has not gained social acceptance of others in that class
a communication that belittles somebody or something