The term 'SLAVE OF OLD' can be summarized by two crossword solutions: SERF and ESNE. A SERF was a peasant in medieval Europe who was bound to the land and had to work for the lord of the manor in exchange for protection and the use of land. An ESNE was a slave in Anglo-Saxon England who was owned by a master and could be bought and sold. Both serfs and esnes were considered to be property and had few rights.