Νικομήδεια, πόλις Βιθυνίας, ἀπὸ Νικομήδους τοῦ Ζηίλα παιδός, ἐπισημοτάτου βασιλέως. ἣ καὶ Ὀλβία ἐκλήθη. ὁ πολίτης Νικομηδεύς. καὶ τὸ κτητικὸν Νικομήδειος, καὶ θηλυκῶς καὶ οὐδετέρως. ἐξ ἧς Ἀρριανός.
Nikomēdeia: a city of Bithynia, named after Nikomēdēs, son of Zēlas, a most distinguished king. It was also called Olbia. The citizen is Nikomēdeus; and the possessive (adjective) is Nikomēdeios, with feminine and neuter forms as well. From it (came) Arrian.