demean vs disgrace

demean is not a noun while disgrace is a noun.

Word	Noun	Adjective	Verb	Adverb
demean	No	No	Yes	No
disgrace	Yes	No	Yes	No

As verbs, demean and disgrace are synonyms defined as:

Other synonyms of demean include degrade, put down, take down.

demean (noun)	disgrace (noun)
	a state of dishonor

demean (verb)	disgrace (verb)
reduce in worth or character, usually verbally	damage the reputation of
	reduce in worth or character, usually verbally
	bring shame or dishonor upon