serfa laborer bound to work on a lord's estate and unable to leave without permissionThe life of a serf in medieval Europe was one of hard labor with few personal freedoms.NoteThe life of a serf in medieval Europe was one of hard labor with few personal freedoms.Elon.io is an online learning platformWe have an entire course teaching TOEFL Academic Vocabulary grammar and vocabulary.Start learning TOEFL Academic Vocabulary now