Fides facta

Definition of Fides facta

Among the Franks and Lombards undertakings were guaranteed by "making one’s faith”— fides facta. This was symbolized by such formal acts as the giving of a rod; in suretyship giving the "festuca” or "vadium.”

That's the definition of Fides facta in Black's Law Dictionary 6th Edition. Courtesy of

Official tim editorial.