An archaic word meaning to make safe, enclose safely, or protect.
From 'en-' (to cause to be) + 'safe' (secure, from Old French). Obsolete in modern English, replaced by 'safeguard' or 'protect'.
Medieval people would 'ensafe' their valuables by locking them in chests—the word literally means 'to put in a safe state,' which is exactly what safes do!
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