right of habitation

from Bouvier's Law Dictionary, Revised 6th Ed (1856)

RIGHT OF HABITATION. By this term, in Louisiana, is understood the right of 
dwelling gratuitously in a house, the property of another. Civ. Code, art. 
623; 3 Toull. ch. 2, p. 325; 14 Toull. n. 279, p. 330; Poth. h.t., n. 22-
25.