universalise vs extrapolate

universalise and extrapolate both are verbs.

Word	Noun	Adjective	Verb	Adverb
universalise	No	No	Yes	No
extrapolate	No	No	Yes	No

As verbs, extrapolate is a hypernym of universalise; that is, extrapolate is a word with a broader meaning than universalise:

Other hypernyms of universalise include generalise, generalize, infer.

universalise (verb)	extrapolate (verb)
make universal	estimate the value of something based on known values
	gain knowledge of (an area not known or experienced) by extrapolating
	draw from specific cases for more general cases