derogation vs feller

derogation and feller both are nouns.

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

derogation (noun)	feller (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	a boy or man
a communication that belittles somebody or something	a person who fells trees