To live longer than someone else, or to survive beyond a certain time period.
From 'out-' (beyond, longer) plus 'live' (from Old English 'libban'). The word has been in English since at least the 1500s, combining the idea of exceeding or surpassing with living.
Outliving someone carries emotional weight—it means you're left behind—which is why the word works for relationships, companies, and ideas too; your legacy 'outlives' you after death.
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