put down vs derogation

put down is not a noun while derogation is a noun.

Word	Noun	Adjective	Verb	Adverb
put down	No	No	Yes	No
derogation	Yes	No	No	No

put down (noun)	derogation (noun)
	(law) the partial taking away of the effectiveness of a law; a partial repeal or abolition of a law
	a communication that belittles somebody or something

put down (verb)	derogation (verb)
put down in writing; of texts, musical compositions, etc.
make a record of; set down in permanent form
put in a horizontal position
remove (cargo, people, etc.) from and leave
cause to sit or seat or be in a settled position or place
put (an animal) to death
reduce in worth or character, usually verbally
cause to come to the ground