derogation vs wet blanket

derogation and wet blanket both are nouns.

Word	Noun	Adjective	Verb	Adverb
derogation	Yes	No	No	No
wet blanket	Yes	No	No	No

derogation (noun)	wet blanket (noun)
(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law	someone who spoils the pleasure of others
a communication that belittles somebody or something