KELTio

The first recorded use of the word Celts (Κελτοί) to refer to an ethnic group was by Hecataeus of Miletus, the Greek geographer, in 517 BC,[6] when writing about a people living near "Massilia" (Marseille).[7] The Latin name "Celtus" (pl. "Celti" or "Celtae") seems to have been borrowed from Greek (Κέλτης pl. Κέλται or Κελτός pl. Κελτοί), according to testimony of Caesar itself taken from a native Celtic tribal name.[8] Pliny the Elder referred it as being used in Lusitania as a tribal surname[9] which epigraphic findings confirm.[10][11]