μελανέω

A. grow black, only in Il. 7.64 Ζεφύροιο ἐχεύατο πόντον ἔπι φρίξ . . , μελάνει δέ τε πόντος ὑπ’ αὐτῆς (sc. τῆς φρικός), cf. Arist. Pr. 934a15; but Aristarch. read πόντον in the second clause and took μελάνει trans., = μελαίνει (sc. Ζέφυρος), makes the sea black:—later writers use μελανέω, intr. (which implies the reading μελανεῖ δέ τε πόντος), Thphr. Ign. 50, A.R. 4.1574, Arat. 836; τὸ καλὸν μελανεῦντα Call. Epigr. 53; μικκὴ καὶ μελανεῦσα AP 5.120 (Phld.).
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project