Stephanos of Byzantium - Ethnika
Hygassos: a city in Karia, as in 'Boubassos' and 'Kryassos'. The ethnonym is 'Hygassios', as in 'Boubassios'. A 'Hygasseion plain' is also spoken of, with a diphthong, from which also comes 'Hygasseus'.
AI translation — gpt-5.5; Gabe v3
Stephanos excerpt (left) is aligned with matched Herodian passages (right). Colors indicate corresponding overlap spans.