PROVERBIAL a. 2 definitions
Mentioned or comprised in a proverb; used as a proverb; hence, commonly known; as, a proverbial expression; his meanness was proverbial. In case of excesses, I take the German proverbial cure, by a hair of the same beast, to be the worst. Sir W. Temple.
BROCARD n.
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.