The act or process of reducing someone to vassal status; the state of being a vassal or feudal dependent.
From 'envassal' plus the noun suffix '-age', which creates abstract nouns indicating a state, condition, or process (like 'marriage', 'bondage', 'village').
Medieval legal documents are obsessed with 'envassalage' because it was the contract that bound entire societies—a peasant's envassalage to a lord meant they gave up freedom but gained theoretical protection, creating the backbone of feudal order.
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