Petty average

PETTY AVERAGE. A contribution by the owners of the ship, freight and goods on board, for losses sustained by the ship and cargo, which consist of small charges. Vide Average.

A Law Dictionary, Adapted to the Constitution and Laws of the United States. By John Bouvier. Published 1856.
References in periodicals archive ?
But she is earning a petty average of around pounds 500 per fight.