demesne
Pronunciation: /dɪˈmeɪn, dɪˈmiːn/
noun
historical- 1a piece of land attached to a manor and retained by the owner for their own use: because labour was cheap, there were ample advantages in cultivating the demesne
- the lands of an estate: a levy of one tenth on property in the royal demesne
- archaic a region or domain: she may one day queen it over that fair demesne

Origin:
Middle English: from Old French demeine (later Anglo-Norman French demesne) 'belonging to a lord', from Latin dominicus, from dominus 'lord, master'. Compare with domain