[4] arinn (m.): The meaning of this heiti is obscure. Arinn is ‘hearth’ and CVC: arinn translates this nautical term as ‘a hatchway’. Falk (1912, 115) suggests that arinn as a heiti for a part of a ship probably had the same meaning as ON viða, a late C12th term that denoted a bridge behind the mast on which the commander stood during battle (Kommandobrücke). That interpretation remains conjectural.