Note 34 — BOOK X. (continued 2)

In the P. V. of Æschylus, l. 732, Prometheus tells Io;

"Ἔσται δὲ θνητοΐς εἰσαεὶ λόγος μέγας Tῆς σῆς πορείας, Βόσπορος δ' ἐπώνυμος Κεκλήσεται."

The true etymology however is to be found in the signification of βοῦς and ἵππος—which in composition means size.