ἀντῳδός
From LSJ
Ἐς δὲ τὰ ἔσχατα νουσήματα αἱ ἔσχαται θεραπεῖαι ἐς ἀκριβείην, κράτισται → For extreme diseases, extreme methods of cure, as to restriction, are most suitable.
English (LSJ)
όν,
A singing in answer, responsive, ἠχὼ λόγων ἀντῳδός Ar.Th.1059; ἀ. πανὶ κρέκων κέλαδον AP7.196 (Mel.); μέλος ἀ. ἠχεῖν, of birds, Ael.NA4.16.