“Where a ship, chartered to convey a cargo to a certain port … is prevented from completing the voyage … the master of the ship may transship the goods, and thus conveying them to their destination, earn his full freight. But if, when the ship has been prevented from proceeding on her voyage, the freighter himself transships the cargo, the master is entitled to freight pro rata itineris, for the proportion of the voyage which he has accomplished.” John Trayner, Trayner’s Latin Maxims 486 (4th ed. 1894).
pro rata itineris
pro rata itineris (proh ray-t[schwa] I-tin-[schwa]-ris). [Latin] Scots law. For the proportion of the journey.
