sustain vs corroborate

sustain and corroborate both are verbs.

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

As verbs, sustain and corroborate are synonyms defined as:

sustain and corroborate: establish or strengthen as with new evidence or facts

Other synonyms of sustain include affirm, confirm, substantiate, support.

sustain (verb)	corroborate (verb)
undergo (as of injuries and illnesses)	establish or strengthen as with new evidence or facts
establish or strengthen as with new evidence or facts	give evidence for
admit as valid	support with evidence or authority or make more certain or confirm
supply with necessities and support
provide with nourishment
be the physical support of; carry the weight of
lengthen or extend in duration or space