Demesne
Demesne , noun
[Old English demeine, demain, rule, demesne, Old French demeine, demaine, demeigne, domaine, power, French domaine domain, from Latin dominium property, right of ownership, from dominus master, proprietor, owner. See Dame, and compare Demain, Domain, Danger, Dungeon.]
(Law) A lord's chief manor place, with that part of the lands belonging thereto which has not been granted out in tenancy; a house, and the land adjoining, kept for the proprietor's own use. — Wharton's Law Dict. Burrill