Stephanos of Byzantium - Ethnika
Okeanos: the river that surrounds the earth. Favorinos, in his Miscellaneous Histories: 'The outer sea is called Okeanos there by most of the barbarians, the great sea by those who inhabit Asia, and the Atlantic sea by the Greeks.' It was so called because it 'naeis swiftly', that is, flows. Those who dwell beside it are 'Okeanitai'. The feminine is 'Okeanitis'. But there is also 'Okeanis' from 'Okeanos'. And just as, from 'para' and 'potamos' and from 'para' and 'Kephisos', there comes to be a derivation from two words into one, 'Parapotamioi' and 'Parakephisioi', so too from those who are beside Okeanos comes ['Prosokeanioi']; Dionysios of Halikarnassos, in book 19 of his Roman Antiquities, used 'prosokeanious' thus: 'having subdued Libya as far as even the Prosokeanian peoples'. We have often spoken about this kind of derivation.
Stephanos excerpt (left) is aligned with matched Herodian passages (right). Colors indicate corresponding overlap spans.
Ὠκεανός, ὁ ποταμὸς ὁ περιέχων τὴν γῆν. Φαβωρῖνος ἐν ταῖς παντοδαπαῖς ἱστορίαις “προσαγορεύουσι δὲ τὴν ἔξω θάλατταν ἐκεῖ μὲν οἱ πολλοὶ τῶν βαρβάρων Ὠκεανόν, οἱ δὲ τὴν Ἀσίαν οἰκοῦντες μεγάλην θάλατταν, οἱ δ´ Ἕλληνες Ἀτλαντικὸν πέλαγος”. ἐκλήθη δ´ οὕτως παρὰ τὸ ὠκέως νάειν, ὅ ἐστι ῥεῖν. οἱ παροικοῦντες Ὠκεανῖται. καὶ τὸ θηλυκὸν Ὠκεανῖτις. ἀλλὰ καὶ Ὠκεανίς ἐκ τοῦ Ὠκεανός. καὶ ὥσπερ παρὰ τὸ ποταμόν καὶ Κηφισόν καὶ π…
…ν βασιλείαν. καὶ πόλιν ᾤκισε Δάρδανον καὶ Δαρδανίαν τὴν χώραν ὠνόμασεν, ἣ Τευκρὶς πρότερον ἐκαλεῖτο». Ἰάρδανος ποταμὸς Λυδίας. Ὅμηρος «Ἰαρδάνου ἀμφὶ ῥέεθρα» (Il. Η 135), ἃ προπαροξύνονται. «τὸ δὲ 'ε' πρὸ τοῦ 'α'» διὰ τὸ ὠκεανός ὁ ποταμὸς ὁ περιέχων τὴν γῆν. Φαβωρῖνος ἐν ταῖς παντοδαπαῖς ἱστορίαις «προσαγορεύουσι δὲ τὴν ἔξω θάλατταν ἐκεῖ μὲν οἱ πολλοὶ τῶν βαρβάρων Ὠκεανόν, οἱ δὲ τὴν Ἀσίαν οἰκοῦντες μεγάλην θάλασσαν, οἱ δὲ Ἕλληνες Ἀτλαντικὸν πέλαγος». ἐκλήθη δὲ οὕτως παρὰ τὸ ὠκέως νάειν, ὅ ἐστι ῥεῖν. καὶ «τὸ 'υ' πρὸ τοῦ 'α'» διὰ τὸ πυανός καὶ κυανός. Τὰ διὰ τοῦ 'ανος' τριγενῆ ὀξύνεται, στεγανός ὁ πυκνός, πιθανός ὁ πρᾷος, ἱκανός…