colourize vs modify

colourize and modify both are verbs.

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

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

Other hypernyms of colourize include alter, change.

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