polychromize vs colorize

polychromize and colorize both are verbs.

Word	Noun	Adjective	Verb	Adverb
polychromize	No	No	Yes	No
colorize	No	No	Yes	No

As verbs, colorize is a hypernym of polychromize; that is, colorize is a word with a broader meaning than polychromize:

Other hypernyms of polychromize include color, color in, colorise, colour, colour in, colourise, colourize.

polychromize (verb)	colorize (verb)
color with many colors; make polychrome	add color to