surmise vs derive

surmise is a noun but derive is not a noun.

Word	Noun	Adjective	Verb	Adverb
surmise	Yes	No	Yes	No
derive	No	No	Yes	No

As verbs, derive is a hypernym of surmise; that is, derive is a word with a broader meaning than surmise:

Other hypernyms of surmise include deduce, deduct, infer.

surmise (noun)	derive (noun)
a message expressing an opinion based on incomplete evidence

surmise (verb)	derive (verb)
infer from incomplete evidence	develop or evolve from a latent or potential state
imagine to be the case or true or probable	obtain from a particular source
	reason by deduction; establish by deduction
	obtain
	come from; be connected by a relationship of blood, for example