To gather together again or reorganize, especially after being separated or having experienced difficulty.
From French 're-' (again) and 'groupe' (group), which came from Italian 'gruppo.' The modern sense of military reorganization developed in the 1800s, then expanded to general use.
In sports and business, 'regroup' has become a way to talk about recovery without admitting you lost—a team that's 'regrouping' is politely falling apart, which shows how language lets us describe failure in ways that feel more hopeful.
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