theorise vs hypothesize

theorise and hypothesize both are verbs.

Word	Noun	Adjective	Verb	Adverb
theorise	No	No	Yes	No
hypothesize	No	No	Yes	No

As verbs, theorise and hypothesize are synonyms defined as:

theorise and hypothesize: to believe especially on uncertain or tentative grounds

Other synonyms of theorise include conjecture, hypothecate, hypothesise, speculate, suppose, theorize.

theorise (verb)	hypothesize (verb)
to believe especially on uncertain or tentative grounds	to believe especially on uncertain or tentative grounds