Broc″ard (�), n. [Perh. fr. Brocardica, Brocardicorum opus, a collection of ecclesiastical canons by Burkhard, Bishop of Worms, called, by the Italians and French, Brocard.] An elementary principle or maximum; a short, proverbial rule, in law, ethics, or metaphysics.
The legal brocard, “Falsus in uno, falsus in omnibus,” is a rule not more applicable to other witness than to consciousness.
Sir W. Hamilton.