- 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.
Meaning of 'demesne' (Princeton's WordNet)
1 . demesne
[ n]
Meaning (1): - territory over which rule or control is exercised
Example in sentence:
he made it the law of the land;
his domain extended into Europe
Meaning (2): - extensive landed property (especially in the country) retained by the owner for his own use