What is a good word between 'slave' and 'servant'?

A serf has a status in between that of a slave and that of a servant.

  • A serf cannot be sold but he is bound to a plot of land owned by his lord. Serfdom was a common condition in feudal Europe during the Middle ages until the plague epidemics and abolished in Russia by the liberal tsar Alexander II in the 19th century.
    A serf is not paid, instead he is required to work on his master's land and this takes precedence over his own plot.
  • A servant, in contrast, has wages and can theoretically choose his master.
  • A slave—there are many variations depending on the place and times—is bought and owned for life. His emancipation depends entirely on his master's goodwill.

Sorry, but there really isn't a good general purpose word for this in English. There are some different words you can use for specific situations such as 'indentured servant', or 'serf', but it's a hard void to fill.

One solution used in some bible translations from older English usage is 'bondservant'.