λαμπρόφωνος
From LSJ
ψυχῆς ἀγῶνα τὸν προκείμενον πέρι δώσων → to stand the appointed trial for his life, to stand the appointed struggle for life and death
English (LSJ)
ον,
A clear-voiced, Hp.Aër. 5, Plu.2.840a: Sup. -ότατος D.18.313:—hence λαμπρο-φωνεύομαι, Hdn.Philet.p.436 P., Hsch. s.v. βαλανεύειν; and λαμπρο-φωνία, Ion. -ιη, ἡ, clearness and loudness of voice, Hdt.6.60.