Noah Webster
Domain
DOMAIN, noun [Latin]
1. Dominion; empire; territory governed, or under the government of a sovereign; as the vast domains of the Russian emperor; the domains of the British king.
2. Possession; estate; as a portion of the kings domains.
3. The land about the mansion house of a lord, and in his immediate occupancy. In this sense, the word coincides with demain, demesne.