IPA: /sɜːrf/
KK: /sɜrf/
A person who is bound to work on a lord's land and is not free to leave, often in exchange for protection and certain rights.
In medieval times, a serf had to work the land for the lord and could not leave without permission.
Serf originates from Old French 'serf' (meaning a servant or slave), which in turn comes from Latin 'servus' (meaning slave or servant). The word 'serf' refers to a person who is bound to work on a lord's estate and is not free to leave.
Think of a 'servant' ('servus') who is bound to work for someone else — that's why a serf is someone who is not free.