modify vs qualify

modify and qualify both are verbs.

Word	Noun	Adjective	Verb	Adverb
modify	No	No	Yes	No
qualify	No	No	Yes	No

As verbs, qualify is a hyponym of modify; that is, qualify is a word with a more specific, narrower meaning than modify:

As verbs, modify and qualify are synonyms defined as:

modify (verb)	qualify (verb)
make less severe or harsh or extreme	make fit or prepared
add a modifier to a constituent	add a modifier to a constituent
cause to change; make different; cause a transformation	make more specific
	specify as a condition or requirement in a contract or agreement; make an express demand or provision in an agreement
	describe or portray the character or the qualities or peculiarities of
	pronounce fit or able
	prove capable or fit; meet requirements