The language of the ancient Romans. There are three sorts of law Latin: (1) Good Latin, allowed by the grammarians and lawyers; (2) false or incongruous Latin, which in times past would abate original writs, though it would not make void any judicial writ, declaration, or plea, etc.; (3) words of art known only to the sages of the law, and not to grammarians, called “Lawyers’ Latin.” Wharton.