deprecation vs denigration

deprecation and denigration both are nouns.

Word	Noun	Adjective	Verb	Adverb
deprecation	Yes	No	No	No
denigration	Yes	No	No	No

As nouns, deprecation and denigration are synonyms defined as:

deprecation and denigration: the act of expressing disapproval (especially of yourself)

deprecation (noun)	denigration (noun)
the act of expressing disapproval (especially of yourself)	the act of expressing disapproval (especially of yourself)
a prayer to avert or remove some evil or disaster	an abusive attack on a person's character or good name
	a belittling comment