Stephanos of Byzantium - Ethnika
Epeiros: the region in the general sense. For some divided the earth into two parts, others into three, and others into four. The forms 'Epeirotes' and 'Epeirotikos' are from 'Epeiros'.
AI translation — gpt-5.5; Gabe v3
Stephanos excerpt (left) is aligned with matched Herodian passages (right). Colors indicate corresponding overlap spans.