sweeten vs modify

sweeten and modify both are verbs.

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

As verbs, modify is a hypernym of sweeten; that is, modify is a word with a broader meaning than sweeten:

Other hypernyms of sweeten include alter, change.

sweeten (verb)	modify (verb)
make sweeter, more pleasant, or more agreeable	make less severe or harsh or extreme
make sweeter in taste	add a modifier to a constituent
	cause to change; make different; cause a transformation