Stephanos of Byzantium - Ethnika
Naissos: a city in Thrace, foundation and fatherland of Constantine the emperor. The ethnonym is 'Naissitanos'. And 'Naissites' seems to be from 'Naissos', and by derivation in the local form 'Naissitanos'.
Stephanos excerpt (left) is aligned with matched Herodian passages (right). Colors indicate corresponding overlap spans.