βάρβιτος
From LSJ
Κύριε, βοήθησον τὸν δοῦλον σου Νῖλον κτλ. → Lord, help your slave Nilos ... (mosaic inscription from 4th-cent. church in the Negev)
English (LSJ)
ἡ or ὁ,
A musical instrument of many strings (πολύχορδος Theoc.16.45), invented by Terpander, Pi.Fr.125; freq. used for the lyre, Anacr.143, B.Scol.Oxy.1361.1.1, E.Cyc.40, Ar.Th.137, etc.: fem. in Anacreont.23.3, but masc. in 14.34: in earlier Poets the gender is not determined:—later βάρβῐτον, τό, as in Latin, Neanth. 5, D.H.7.72, Ath.4.175e, etc. (Prob. a foreign word, Str.10.3.17.)