Enslavement is a related term of vassalage.
As nouns the difference between enslavement and vassalage
is that enslavement is the act of enslaving or the state of being a slave; bondage while vassalage is the state of being a vassal.
enslavement
English
Noun
The act of enslaving or the state of being a slave; bondage
vassalage
English
Noun
The state of being a vassal.