In a manner that is not subject to the laws or jurisdiction of a particular territory.
From 'extraterritorial' + '-ly' (forming adverbs). This adverb developed in legal and diplomatic writing to describe actions taken with territorial exemption.
When diplomats say something happened 'extraterritorially,' they're saying it went down in a way that bypassed normal legal rules—like when you're technically on another country's soil but protected by special agreements.
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