A mansion is a large dwelling house. The word itself derives through Old French from the Latin word mansio "dwelling", an abstract noun derived from the verb manere "to dwell". The English word manse originally defined a property large enough for the parish priest to maintain himself, but a mansion is no longer self-sustaining in this way. Manor comes from the same root—territorial holdings granted to a lord who would "remain" there. Following the fall of Rome, the practice of building unfortified villas ceased. Today, the oldest inhabited mansions around the world usually began their existence as fortified houses in the Middle Ages. As social conditions slowly changed and stabilised fortifications were able to be reduced, and over the centuries gave way to comfort. It became fashionable and possible for homes to be beautiful rather than grim and forbidding allowing for the development of the modern mansion.