• Webster's Revised Unabridged Dictionary
    • n 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."
    • ***
Century Dictionary and Cyclopedia
    • n brocard A law maxim founded on inveterate custom, or borrowed from the Roman law, and accounted part of the common law.
    • n brocard Hence An elementary principle or maxim; a short proverbial rule; a canon.
    • ***
Chambers's Twentieth Century Dictionary
    • n Brocard brok′ärd an elementary law or principle: a canon:
    • n Brocard brok′ärd (Fr.) a gibe.
    • ***


Webster's Revised Unabridged Dictionary
Perh. fr. Brocardica, Brocardicorum, opus, a collection of ecclesiastical canons by Burkhard, Bishop of Worms, called, by the Italians and French, Brocard,
Chambers's Twentieth Century Dictionary
Fr. brocard, Low L. brocarda, from Brocard or Burchard, Bishop of Worms, who published a book of ecclesiastical rules.


In literature:

The same persons, General de Verby and Madame du Brocard.
"Pamela Giraud" by Honore de Balzac
Father Xavier wore a cassock of black chainlet, and over it a surplice, with a stole of green velvet, garnished with a gold brocard.
"The Works of John Dryden, Volume XVI. (of 18)" by John Dryden
Captain d'Harcourt had succeeded Major Brocard pro tem as commandant of the unit.
"Georges Guynemer" by Henry Bordeaux
At Sermaize, the roadmaker Brocard was placed among a number of hostages.
"Current History, A Monthly Magazine" by New York Times
Instinctively Brocard and Grahame moved towards the door and out into the road.
"Lorraine" by Robert W. Chambers
Ha, j' te promets, comper' Brocard, Tu sortiras de ce lieu-la.
"Comparative Studies in Nursery Rhymes" by Lina Eckenstein

In science:

Legendre, P., Brocard, D. & Peres-Neto, P. (2005).
Dismantling the Mantel tests
Dabrowski, On the Brocard-Ramanujan problem and generalizations, Preprint, 2009.
On the largest prime factor of $x^2-1$