bondmaid
bondman
bondslave
bondsman
bondswoman
captive
chattel
chattel slave
churl
concubine
debt slave
galley slave
helot
homager
liege
liege man
liege subject
odalisque
peon
serf
servant
slave
subject
theow
thrall
vassal
villain
cotter
cottier
allodial
calker
carl
clay-built
foreign-currency
freeholder
gawk
jiggle
lackwit
lummox
moil
mutual-fund
raker
rent-free
roustabout
seigniorial
socage
sonovabitch