overgeneralise vs extrapolate

overgeneralise and extrapolate both are verbs.

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

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

Other hypernyms of overgeneralise include generalise, generalize, infer.

overgeneralise (verb)	extrapolate (verb)
draw too general a conclusion	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