Verbs

(v)confirm, corroborate, sustain, substantiate, support, affirmestablish or strengthen as with new evidence or facts“his story confirmed my doubts”, “The evidence supports the defendant”
(v)affirm, verify, assert, avow, aver, swan, swearto declare or affirm solemnly and formally as true“Before God I swear I am innocent”
(v)affirmsay yes to