udal
/ˈjuːdəl/noun
mass noun
- Law a kind of freehold tenure based on uninterrupted possession, formerly practised in northern Europe and still in use in Orkney and Shetland【律】土地自由保有权（旧时在北欧实行, 今仍然在英国奥克尼和设得兰实行）。
词源
late 15th cent.: from Old Norse othal 'property held by inheritance', of Germanic origin.