stabilise vs fortify

stabilise and fortify both are verbs.

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

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

stabilise: support or hold steady and make steadfast, with or as if with a brace
fortify: make strong or stronger

Other hypernyms of stabilise include beef up, strengthen.

stabilise (verb)	fortify (verb)
become stable or more stable	add alcohol to (beverages)
make stable and keep from fluctuating or put into an equilibrium	make strong or stronger
support or hold steady and make steadfast, with or as if with a brace	add nutrients to
	prepare oneself for a military confrontation
	enclose by or as if by a fortification