Stephanos of Byzantium - Ethnika
Kotiaeion: a city of Epiktetos Phrygia. Strabo book 12. Some, however, say that it ought to be “Kosiaion.” It seems, rather, to be derived from Kōsas as Kosaeion is from Kōsas—just as from Midas comes Midaeion—then by the addition of i, Kosiaeion, and by a phonetic change, Kotiaeion. The ethnic is Kotiaeus. There too lived Alexander son of Asklepiades, a grammarian of the greatest learning, who wrote twenty-four books on miscellaneous subject-matter.
Stephanos excerpt (left) is aligned with matched Herodian passages (right). Colors indicate corresponding overlap spans.