n. & a. etc. [ Icel. ōðal allodium, an hereditary estate; akin to Sw. odal allodial, Dan. odel. ] Vars. of Odal, etc.; property held by udal, or allodial, right -- Obs. exc. in Shetland and the Orkney Islands, where udal designates a freehold, land held in fee simple without any charter and free of any feudal character. [ Webster 1913 Suppl. ]