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Proto-Indo-EuropeanReconstructed Roots & Sound Laws

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Branches/Celtic

Celtic

Albanian Anatolian Armenian Baltic Balto-Slavic Celtic Germanic Hellenic Indo-Aryan Indo-Iranian Iranian Italic Proto-Indo-European Romance Slavic Tocharian

Irish, Welsh, Breton, Scottish Gaelic.

Languages

Language	Period	ISO 639-3
Old Irish	Primitive / Old (5th–10th c. CE)	sga

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Reference Works

Pokorny, IEW
Rix, LIV²
Watkins, AHD
Beekes, EDG

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