prorate vs calculate

prorate and calculate both are verbs.

Word	Noun	Adjective	Verb	Adverb
prorate	No	No	Yes	No
calculate	No	No	Yes	No

As verbs, calculate is a hypernym of prorate; that is, calculate is a word with a broader meaning than prorate:

Other hypernyms of prorate include cipher, compute, cypher, figure, reckon, work out.

prorate (verb)	calculate (verb)
divide or assess proportionally	make a mathematical calculation or computation
make a proportional settlement or distribution	specifically design a product, event, or activity for a certain public
	judge to be probable
	have faith or confidence in
	predict in advance
	keep an account of