regg (noun n.) ‘boat, vessel...’

• Þorm Þorgdr 15^V (Fbr 18)/4 — reggs ‘of a ship’1025
• SnSt Ht 34^III/4 — reggi ‘with a vessel’1221
• Þul Skipa 2^III/5 — regg ‘regg’?

elements in compounds

• Arn Magndr 12^II — reggbúss ‘the ship-tree’ 1050
• Anon Óldr 4^I — Reggstrindar ‘of the boat-land’ 1190