verdigris vs colourize

verdigris is a noun but colourize is not a noun.

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

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

Other hypernyms of verdigris include color, color in, colorise, colorize, colour, colour in, colourise.

verdigris (noun)	colourize (noun)
a green patina that forms on copper or brass or bronze that has been exposed to the air or water for long periods of time
a blue or green powder used as a paint pigment

verdigris (verb)	colourize (verb)
color verdigris	add color to