avouch

AVOUCH', v.t. [L. voco, advoco. See Voice.]

1. To affirm; to declare or assert with positiveness.

2. To produce or call in; to affirm in favor of, maintain or support.

Such antiquities could be avouched for the Irish.

3. To maintain, vindicate or justify.

AVOUCH', n. Evidence; testimony; declaration. [Little used.]