bear witness vs presume

bear witness and presume both are verbs.

Word	Noun	Adjective	Verb	Adverb
bear witness	No	No	Yes	No
presume	No	No	Yes	No

As verbs, presume is a hyponym of bear witness; that is, presume is a word with a more specific, narrower meaning than bear witness:

Other hyponyms of bear witness include attest, certify, demonstrate, evidence, manifest, abduce, adduce, cite.

bear witness (verb)	presume (verb)
give testimony in a court of law	take liberties or act with too much confidence
provide evidence for	take to be the case or to be true; accept without verification or proof
	constitute reasonable evidence for
	take upon oneself; act presumptuously, without permission