Allodium
Allodium ({not transcribed}) , noun
[Late Latin allodium, alodium, alodis, alaudis, of German origin; compare Old High German al all, and {not transcribed}t (Anglo-Saxon eād) possession, property. It means, therefore, entirely one's property.]
(Law) Freehold estate; land which is the absolute property of the owner; real estate held in absolute independence, without being subject to any rent, service, or acknowledgment to a superior. It is thus opposed to feud. — Blackstone