corroborate
(verb)
verb
1. establish or strengthen as with new evidence or facts
Similar word(s): affirm, confirm, substantiate, support, sustain
Definition categories: cognition
2. give evidence for
Similar word(s): validate
Definition categories: communication, confirm, reassert
3. support with evidence or authority or make more certain or confirm
Similar word(s): support, underpin
Definition categories: stative, agree, check, correspond, fit, gibe, jibe, match, tally