1.To appeal to; to cite or claim as authority. (Obs.) "They avouch many successions of authorities."
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."
3.To declare or assert positively and as matter of fact; to affirm openly. "If this which he avouches does appear." "Such antiquities could have been avouched for the Irish."
4.To acknowledge deliberately; to admit; to confess; to sanction. "Thou hast avouched the Lord this day to be thy God."
