forearm vs fortify

forearm is a noun but fortify is not a noun.

Word	Noun	Adjective	Verb	Adverb
forearm	Yes	No	Yes	No
fortify	No	No	Yes	No

As verbs, fortify is a hypernym of forearm; that is, fortify is a word with a broader meaning than forearm:

Other hypernyms of forearm include arm, build up, gird.

forearm (noun)	fortify (noun)
the part of the superior limb between the elbow and the wrist

forearm (verb)	fortify (verb)
arm in advance of a confrontation	add alcohol to (beverages)
	make strong or stronger
	add nutrients to
	prepare oneself for a military confrontation
	enclose by or as if by a fortification