I will be glad to hand this binder down to my niece and vouch for its comfort.
Her ex-husband, who also attended the game, could vouch for her whereabouts, she said.
The White House has been rounding up senators to vouch for her.
early 14c., "summon into court to prove a title," from Anglo-French voucher, Old French vocher "to call, summon, invoke, claim," probably from Gallo-Romance *voticare, metathesis of Latin vocitare "to call to, summon insistently," frequentative of Latin vocare "to call, call upon, summon" (see voice (n.)). Meaning "guarantee to be true or accurate" is first attested 1590s. Related: Vouched; vouching.