A*vouch" (&?;), v. t. [imp. & p. p. Avouched (&?;); p. pr. & vb. n. Avouching.] [OF. avochier, LL. advocare to recognize the existence of a thing, to advocate, fr. L. advocare to call to; ad + vocare to call. Cf. Avow to declare, Advocate, and see Vouch, v. t.] 1. To appeal to; to cite or claim as authority. [Obs.]

They avouch many successions of authorities.
Coke.

2. To maintain a just or true; to vouch for.

We might be disposed to question its authenticity, it if were not avouched by the full evidence.
Milman.

3. To declare or assert positively and as matter of fact; to affirm openly.

If this which he avouches does appear.
Shak.

Such antiquities could have been avouched for the Irish.
Spenser.

4. To acknowledge deliberately; to admit; to confess; to sanction.

Thou hast avouched the Lord this day to be thy God.
Deut. xxvi. 17.

A*vouch" (&?;), n. Evidence; declaration. [Obs.]

The sensible and true avouch
Of mine own eyes.
Shak.