Origin of lagan; from OFr, goods washed up by the sea ; from uncertain or unknown; perhaps base of Old Norse leggja, to lie
also li·gan or lag·end
Origin of laganFrench, from Old French, possibly from Old Norse l&odie;gn, lagn-; see legh- in Indo-European roots.
- (law) Goods or materials found or left on the sea floor.
From Old French lagan, lagand, perhaps of Scandinavian origin.