the.com/banishment

means The forced removal of a person from a place—usually their home country or community—as a punishment or official decree.

from From 'banish,' borrowed through Old French 'banir,' rooted in Germanic/Frankish 'ban' — a public proclamation or edict, the kind a lord or king would cry out to announce law. To banish someone was literally to put them 'under the ban': declared outlaw by official word, cast beyond the protection of the community's law. The '-ishment' suffix just nouns the verb, formalizing what was always a bureaucratic act — exile pronounced, not just inflicted.