Udal
Udal (ū"dal) , noun and adjective
[Icelandic ōeal allodium, an hereditary estate; akin to Swedish odal allodial, Danish 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.
Also: Udalman, Udaler, Udalborn
Udal , adjective
Allodial; -- a term used in Finland, Shetland, and Orkney. See Allodial. — Burrill