serf
noun
[ səːf ]
• an agricultural labourer bound by the feudal system who was tied to working on his lord's estate.
Similar:
bondsman,
slave,
servant,
menial,
villein,
thrall,
helot,
ceorl,
vassal,
liegeman,
Origin:
late 15th century (in the sense ‘slave’): from Old French, from Latin servus ‘slave’.