Lagan

The country folk, who were prowling about the shore after the waifs of the storm, deserted jetsom and lagend, and crowded to meet the richer prize.

"Lagan" was a word already in use, recorded as early as 1200, from a Scandinavian word family for things that lie deep. It is recorded again in 1531 to signify cargo that has sunk and lies on the bottom of the ocean, but might yet be reclaimed.

Lagan are those things that are intentionally jettisoned, as well, but which sink below the surface, possibly marked by a buoy or a line.