Ἀηδών καὶ ἀηδοῦς

And [in the genitive singular] a)hdou=s; such [was] Sappho according to Mytilenians.¹ Sophocles [writes]: "ill-starred, she will not sing the lament of the piteous nightingale, but she will sing shrill dirges and the thuds of her hands hitting fall upon her chest."²
And elsewhere: "not even to the extent that nightingales sleep." [sc. A proverbial phrase] in reference to those who lie awake.³
And elsewhere: "but those sighing strains please my heart, those which the bird, the sad messenger of Zeus, always wails 'Itys'."⁴ In Attic a)/rare/ me. She herself is equal to my heart, meaning we are in harmony, the nightingale and I, on account of mourning. It is fitting to my thoughts, that is, I emulate that one sighing likewise for Itys. The nightingale [is] the messenger of Zeus, because it indicates spring or day-time. And Homer [says]: "the greeny-brown nightingale."⁵ Either because she announces her own miseries and her babbling message and her suffering. Or a messenger like an omen who comes from him as a marvel of nature. And Sappho [writes]: "spring's messenger, day-voicing nightingale."⁶
But a)hdw/n [has a genitive] a)hdo/nos; it shortens [the omega].