Avouch vs Aow - What's the difference?

avouch

(es)

To declare freely and openly; to assert.

* Shakespeare

if this which he avouches does appear

* Spenser

Such antiquities could have been avouched for the Irish.

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

* Bible, Deuteronomy xxvi. 17

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

To confirm or verify, to affirm the validity of.

* Milman

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

To appeal to; to cite or claim as authority.

* Edward Coke

They avouch many successions of authorities.

(-)

(obsolete) evidence; declaration

* Shakespeare

The sensible and true avouch / Of mine own eyes.

Aow has no English definition. It may be misspelled.