servitude

ser|vi|tude /s'ɜː^rvɪtjuːd, AM -tuːd/
[N-UNCOUNT]
Servitude is the condition of being a slave or of being completely under the control of someone else.
...a life of servitude.
see also penal servitudepe|nal ser|vi|tude
[N-UNCOUNT]
Penal servitude is the punishment of being sent to prison and forced to do hard physical work. (FORMAL)
= hard labour