LAGAN
lagan (lag-<<schwa>>n), n.1. Goods that are abandoned at sea but attached to a buoy so that they may be recovered. — Also termed lagend; lagon; ligan; ligen; logan. Cf. FLOTSAM; JETSAM; WAVESON. 2.Archaic. Wreckage or cargo lying on the seabed.
[Blacks Law 8th]