Emily Dickinson Lexicon

A-VOUCH', v.t. [Norm. voucher, to call, to vouch; L. voco, advoco. See Voice.]

1. To affirm; to declare or assert with positiveness. – Hooker.
2. To produce or call in; to affirm in favor of, maintain or support. Such antiquities could be avouched for the Irish. – Spenser.
3. To maintain, vindicate or justify. – Shak.