δευτερόφωνος
From LSJ
Ὥσπερ αὐτοῦ τοῦ ἡλίου μὴ ὄντος καυστικοῦ, ἀλλ' οὔσης ζωτικῆς καὶ ζωοποιοῦ θέρμης ἐν αὐτῷ καὶ ἀπλήκτου, ὁ ἀὴρ παθητικῶς δέχεται τὸ ἀπ' αὐτοῦ ϕῶς καὶ καυστικῶς· οὕτως οὖν ἁρμονίας οὔσης ἐν αὐτοῖς τινὸς καὶ ἑτέρου εἴδους ϕωνῆς ἡμεῖς παθητικῶς ἀκούομεν → Just as although the Sun itself does not cause burning but has a heat in it that is life-giving, life-engendering, and mild, the air receives light from it by being affected and burned, so also although there is a certain harmony and a different kind of voice in them, we hear it by being affected.
English (LSJ)
ον,
A speaking after one, of Echo, Nonn.D.2.119.
German (Pape)
[Seite 554] ἠχώ, zum zweiten, nachtönend, Nonn. D. 2, 119.
Greek (Liddell-Scott)
δευτερόφωνος: -ον, ὁ φωνῶν μετά τινα, ἐπὶ τῆς ἠχοῦς, Νόνν. Δ. 2 119.