mortify vs refrain

mortify is not a noun while refrain is a noun.

Word	Noun	Adjective	Verb	Adverb
mortify	No	No	Yes	No
refrain	Yes	No	Yes	No

mortify (noun)	refrain (noun)
	the part of a song where a soloist is joined by a group of singers

mortify (verb)	refrain (verb)
undergo necrosis	choose not to consume
cause to feel shame; hurt the pride of	resist doing something
hold within limits and control
practice self-denial of one's body and appetites