inhabitancy(n = noun.act) habitation, inhabitation - the act of dwelling in or living permanently in a place (said of both animals and men); "he studied the creation and inhabitation and demise of the colony"
The act of inhabiting, or the state of being inhabited; the condition of an inhabitant; residence; occupancy. [1913 Webster]
"Ruins yet resting in the wild moors testify a former inhabitance."
[1913 Webster]
The state of having legal right to claim the privileges of a recognized inhabitant; especially, the right to support in case of poverty, acquired by residence in a town; habitancy. [1913 Webster]