serf
'lower class of cultivators of the soil’
Lexical development traced from the Tamil root:
O.F. serf ‘vassal, servant, slave’ < Lat.servum ‘slave’ < O.F. servir ‘to do duty toward, show devotion to; set table, serve at table; offer, provide with’ < Lat. servire ‘be a servant, be in service, be enslaved,’ related to servus ‘slave’ < Proto-Italic serwo- ‘shepherd,’ serwā- ‘observation’ < suhf < seruo- < Tamil iṟai