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Proto-Indo-European (PIE), the reconstructed proto-language for the Indo-European language family

Proto-Indo-European (PIE) is the common ancestor of the languages, spoken by the Proto-Indo-European people roughly 5700 years ago. It is not attested, but rather has been reconstructed in substantial detail using the .

Use this tag for questions specifically about the PIE language itself and its reconstruction. For questions about the history of its descendants, use .