Stephanos of Byzantium - Ethnika
Kapinna: a Tyrrhenian city. It is also used in the plural. The ethnonym is 'Kapinnates' [and 'Kapinnetes'], as in 'Aiginates' and 'Aiginetes'. The possessive is 'Kapinnatios'.
Stephanos excerpt (left) is aligned with matched Herodian passages (right). Colors indicate corresponding overlap spans.