To restrict or limit someone or something within certain boundaries or limits. It implies keeping within specific bounds, whether physical, mental, or conceptual.
From Old French 'confiner', from Latin 'confinis' meaning 'bordering, adjacent', from 'con-' (together) + 'finis' (boundary, end). Originally meant 'to border upon', then evolved to mean 'to keep within boundaries'.
Confine originally meant 'to share a border with' rather than 'to imprison'! It shows how boundaries can be seen as either protective borders between neighbors or restrictive walls around prisoners - same word, very different feelings.
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