The term ESNE is an Old English word that refers to a servant or SLAVE. In a crossword puzzle, the solutions for ESNE are SERF (4 letters) and SLAVE (5 letters). Both words refer to a person who is bound to a master and has no freedom of their own. Historically, serfs were peasants in the Middle Ages who were tied to the land they worked on and could not leave without permission from their lord. Slaves were people who were owned by another person and had no rights or freedom.