The Greek and Latin names Galatia (first attested by Timaeus of Tauromenium in the 4th century BC) and "Gallia" are ultimately derived from a Celtic ethnic term or clan "Gal(a)-to-". The "Galli" of "Gallia Celtica" were reported to refer to themselves as "Celtae" by Caesar. Hellenistic folk etymology connected the name of the Galatians (Γαλάται, "Galátai") to the supposedly "milk-white" skin (γάλα, "gála" "milk") of the Gauls. Modern researchers say it is related to Welsh "gallu", , "capacity, power", thus meaning "powerful people".