derogation vs chiseller

derogation and chiseller both are nouns.

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

derogation (noun)	chiseller (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	a person who swindles you by means of deception or fraud
a communication that belittles somebody or something