the tenure or service of a villein, serf, or slave
slavery or serfdom
subjugation to a controlling person or force
a form of sexual gratification involving the physical restraint of one partner
bondage fantasies
[Middle English, from bonde peasant, serf, from Old English bōnda householder, from Old Norse bōndi, a peasant proprietor. The notion of restraint comes from association with bond1, in the sense ‘fetter’]