Flotsam, jetsam, lagan and derelict
In maritime law, flotsam, jetsam, lagan, and derelict are terms for various types of property lost or abandoned at sea. The words have specific nautical meanings, with legal consequences in the law of admiralty and marine salvage.
Source: Wikipedia — Flotsam, jetsam, lagan and derelict (CC BY-SA 4.0)