ὑπερφωνέω · hyperphōneō — LSJ
speak exceedingly well, Philostr. VS 1 Prooem.
trans., outbawl, τινα Luc. Rh.Pr. 13; οἰμωγὴ ὑ. τὸν τῶν σαλπίγγων ἦχον J. AJ 11.4.2: metaph., outdo, Philostr. VA 5.7, cf. Jul. Or. 6.182a; τὸ Θηβῶν πάθος ὑ. τοὺς Ἕλληνας Him. Ecl. 2.4.
sing loudly, αἴνεσιν LXX Ju. 15.14 (16.1).