derogation vs iceman

derogation and iceman both are nouns.

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

derogation (noun)	iceman (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	someone who cuts and delivers ice
a communication that belittles somebody or something	a professional killer