vouch vs corroborate

vouch and corroborate both are verbs.

Word	Noun	Adjective	Verb	Adverb
vouch	No	No	Yes	No
corroborate	No	No	Yes	No

As verbs, corroborate is a hypernym of vouch; that is, corroborate is a word with a broader meaning than vouch:

Other hypernyms of vouch include affirm, confirm, substantiate, support, sustain.

vouch (verb)	corroborate (verb)
give supporting evidence	establish or strengthen as with new evidence or facts
summon (a vouchee) into court to warrant or defend a title	give evidence for
give personal assurance; guarantee	support with evidence or authority or make more certain or confirm
give surety or assume responsibility