Stephanos of Byzantium - Ethnika
Nysai: several cities. In Helikon. In Thrace. In Karia. In Arabia. In Egypt. In Naxos. Among the Indians. On Mount Kaukasos. In Libya. In Euboia, where, they say, within a single day the vine blossoms and the grape-cluster ripens. The ethnic is Nysus, and the feminine Nysais, from which the possessive adjective is Nysēios. One also says Nysaios, and from it Nysaieus and Nysaeus without the iota.
Stephanos excerpt (left) is aligned with matched Herodian passages (right). Colors indicate corresponding overlap spans.