witch vs hag

witch and hag both are nouns.

Word	Noun	Adjective	Verb	Adverb
witch	Yes	No	Yes	No
hag	Yes	No	No	No

As nouns, witch and hag are synonyms defined as:

Other synonyms of witch include beldam, beldame, crone.

witch (noun)	hag (noun)
a female sorcerer or magician	eellike cyclostome having a tongue with horny teeth in a round mouth surrounded by eight tentacles; feeds on dead or trapped fishes by boring into their bodies
a being (usually female) imagined to have special powers derived from the devil	an ugly evil-looking old woman
an ugly evil-looking old woman
a believer in Wicca

witch (verb)	hag (verb)
cast a spell over someone or something; put a hex on someone or something