matte up vs felt

matte up is not a noun while felt is a noun.

Word	Noun	Adjective	Verb	Adverb
matte up	No	No	Yes	No
felt	Yes	No	Yes	No

As verbs, matte up and felt are synonyms defined as:

Other synonyms of matte up include felt up, mat, mat up, matt-up, matte.

matte up (noun)	felt (noun)
	a fabric made of compressed matted animal fibers

matte up (verb)	felt (verb)
change texture so as to become matted and felt-like	change texture so as to become matted and felt-like
	cover with felt
	mat together and make felt-like