Servitude (noun)

1. The condition of being a slave or being owned by someone else.
2. The state of being subject to a master or servitor.
3. A state of having to do work without pay.

Origin:

From the middle english word "servete", from the old french word "servitude", from the latin word "servitudo" meaning "slavery" or "the state of being a slave".

Examples:

1. Slavery is a form of servitude.
2. He was forced into servitude after being captured in battle.
3. Many people in the Middle Ages lived in a state of servitude to the local lord.
4. The villagers were forced into servitude to the king.
5. The prisoners were forced into servitude by the guards.