Black's Law Dictionary (2nd edition)dictionaries

Moderata Misericordia

A writ founded on Magna Charta, which lies for him who is amerced in a court, not of rec-ord, for any transgression beyond the quality or quantity of the offense. It Ib addressed to the lord of the court, or his bailiff, com-mandlng Elm to take a moderate amerclament of the parties. New Nat Brev. 167; Fltzh. Nat. Brev. 76

Source: Black’s Law Dictionary 2nd Ed (1910)