[They] vouch (as I might say) to their aid the
authority of the writers. --Sir T.
Elyot.
2. To call upon to witness; to obtest.
Vouch the silent stars and conscious moon. --Dryden.
3. To warrant; to maintain by affirmations; to attest; to
affirm; to avouch.
They made him ashamed to vouch the truth of the
relation, and afterwards to credit it. --Atterbury.
4. To back; to support; to confirm; to establish.
Me damp horror chilled At such bold words vouched
with a deed so bold. --Milton.
5. (Law) To call into court to warrant and defend, or to make
good a warranty of title.
He vouches the tenant in tail, who vouches over the
common vouchee. --Blackstone.
Syn: To obtest; declare; affirm; attest; warrant; confirm;
asseverate; aver; protest; assure.