thrall Look up thrall at Dictionary.com
O.E. þræl "bondman, serf, slave," from O.N. þræll "slave, servant," probably from P.Gmc. *thrakhilaz, lit. "runner," from root *threh- "to run" (cf. O.H.G. dregil "servant," prop. "runner;" O.E. þrægan, Goth. þragjan "to run").