tumefy vs swell

tumefy is not a noun while swell is a noun.

Word	Noun	Adjective	Verb	Adverb
tumefy	No	No	Yes	No
swell	Yes	Yes	Yes	No

As verbs, tumefy and swell are synonyms defined as:

Other synonyms of tumefy include intumesce, swell up, tumesce.

As verbs, swell is a hypernym of tumefy; that is, swell is a word with a broader meaning than tumefy:

tumefy (noun)	swell (noun)
	a crescendo followed by a decrescendo
	the undulating movement of the surface of the open sea
	a rounded elevation (especially one on an ocean floor)
	a man who is much concerned with his dress and appearance

tumefy (adjective)	swell (adjective)
	excellent

tumefy (verb)	swell (verb)
expand abnormally	expand abnormally
cause to become very swollen	cause to become swollen
	increase in size, magnitude, number, or intensity
	come up, as of a liquid
	become filled with pride, arrogance, or anger
	come up (as of feelings and thoughts, or other ephemeral things)