P-Celtic - definition of P-Celtic by The Free Dictionary
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P-Cel·tic (pē′kĕl′tĭk, -sĕl′-)
[From the change of the Common Celtic labiovelar stops to labial stops in Brittonic.]
References in periodicals archive
And he reminds us that during the time when Arthur - whoever he was - is said to have lived, an early form of the Welsh language known to academics as P-Celtic
was spoken throughout much of western and northern Britain.