Avouchment -

In classical literature or older legal texts, to "avouch" something was to summon a witness or provide a definitive guarantee. constitution and rules of order - Grand Chapter of Florida

I vouch for the integrity of the attached documentation and testify that no material facts have been omitted or misrepresented. avouchment

Often used to verify that a member is in good standing or qualified to participate in specific degrees or rituals. In classical literature or older legal texts, to

Acts as a stronger form of "vouching," where the speaker takes personal responsibility for the truth of what they say. avouchment