Strabo Geography 9.2.20

[20] Among the neighboring lakes are Lake Trephia ¹ and the Cephissian Lake, which is also mentioned by the poet: “Who dwelt in Hyle, strongly intent upon wealth, on the shore of the Cephissian Lake.” ² For he does not mean Lake Copais, as some think, but lake Hylice (accented on the last syllable like lyricé), which is named after the village near by that is called Hyle (accented like lyra and thyra), not Hyde, as some write, “who dwelt in Hyde.” For Hyde is in Lydia, “below snowy Tmolus in the fertile land of Hyde,” ³ whereas Hyle is in Boeotia; at any rate, the poet appends to the words, “on the shore of the Cephissian lake,” the words, “and near him dwelt the rest of the Boeotians.” For Lake Copais is large, and not in the territory of Thebes; whereas the other is small, and is filled from lake Copais through subterranean channels; and it is situated between Thebes and Anthedon. Homer, however, uses the word in the singular number, at one time making the first syllable long, as in the Catalogue, “and Hyle and Peteön, ⁴ by poetic licence, and at another making it short, “who dwelt in Hyle,” and “Tychius . . . , by far the best of leatherworkers, who had his home in Hyle.” ⁵ And certain critics are not correct in writing Hyde here, either; for Aias was not sending to fetch his shield from Lydia.