LSJ
loudly, Phot. ; hence aor.1 inf. ἰβυκινῆσαι, shout, Teleclid. 58 (ἰβυκηνίσαι EM 464.44); but Subst. ἰβυκανητής, οῦ, ὁ, = βυκανητής, trumpeter, read by Suid. in Plb. 2.29.6 (βυκανητῶν, βυκανιτῶν codd.). Ion. words, acc. to Hsch. ; derived from the poet Ibycus, Suid.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)