1911 Encyclopædia Britannica, Volume 14… (1911)
“ The theory of H. L. Ahrens, that Hyperboreans and Perphereës are identical, is now widely accepted. In some of the dialects of northern Greece (especially Macedonia and Delphi) φ had a tendency to become β. The original form of Περφερέες was ὑπερφερέται or ὑπέρφοροι (“those who carry over”) , which becoming ὑπέρβοροι gave rise to the popular derivation from βορέας (“dwellers beyond the north wind”) . The Hyperboreans were thus the bearers of the sacrificial gifts to Apollo over land and sea, irrespective of their home, the name being given to Delphians, Thessalians, Athenians and Delians. ”
