To affirm or acknowledge openly; declare or assert with positiveness; proclaim.
To admit, confess, or avow.
To maintain, vindicate, or justify; make good; answer for; establish; guarantee; substantiate.
To appeal to, or cite as proof or warrant: as, to avouch the authorities on any subject.
To give assurance or guaranty; vouch: as, “I can avouch for her reputation,”
noun.
Evidence; testimony; assurance.