cause to sleep vs modify

cause to sleep and modify both are verbs.

Word	Noun	Adjective	Verb	Adverb
cause to sleep	No	No	Yes	No
modify	No	No	Yes	No

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

Other hypernyms of cause to sleep include alter, change.

cause to sleep (verb)	modify (verb)
make fall asleep	make less severe or harsh or extreme
	add a modifier to a constituent
	cause to change; make different; cause a transformation