To remove someone from their native country or homeland; to denationalize or strip of national identity or citizenship.
From 'de-' (meaning to remove) plus 'patriate,' which comes from Latin 'patria' meaning fatherland or native country. The word implies removing one's connection to their country of origin.
This word was actually used in Canadian constitutional history during discussions about 'patriation'—the process of bringing constitutional power back to Canada from Britain, so 'depatriate' became its opposite!
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