the mind > possession > non-possession > fact of not being possessed or owned > [adjective] > unoccupied (3)
Of a place (a house, geographical area, room, seat, etc.): not occupied, empty, not in use; uninhabited. Formerly also: †(of land) uncultivated…
Of a house or room: unoccupied; untenanted. Now chiefly dialect.
Of land, houses, etc.: Uninhabited, unoccupied, untenanted. Also, of a room: Not in use, disengaged.