revert vs regress

revert is not a noun while regress is a noun.

Word	Noun	Adjective	Verb	Adverb
revert	No	No	Yes	No
regress	Yes	No	Yes	No

As verbs, revert and regress are synonyms defined as:

Other synonyms of revert include retrovert, return, turn back.

As verbs, regress is a hyponym of revert; that is, regress is a word with a more specific, narrower meaning than revert:

Other hyponyms of revert include fall back, lapse, recidivate, relapse, retrogress, resile, go back, recover, recuperate.

revert (noun)	regress (noun)
	returning to a former state
	the reasoning involved when you assume the conclusion is true and reason backward to the evidence

revert (verb)	regress (verb)
go back to a previous state	go back to bad behavior
undergo reversion, as in a mutation	get worse or fall back to a previous condition
	go back to a previous state
	go back to a statistical means