hop up vs modify

hop up and modify both are verbs.

Word	Noun	Adjective	Verb	Adverb
hop up	No	No	Yes	No
modify	No	No	Yes	No

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

hop up (verb)	modify (verb)
make more powerful	make less severe or harsh or extreme
	add a modifier to a constituent
	cause to change; make different; cause a transformation