uglify vs modify

uglify and modify both are verbs.

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

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

Other hypernyms of uglify include alter, change.

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