σύγχορδος
From LSJ
ῥεῖα δ' ἀρίζηλον μινύθει καὶ ἄδηλον ἀέξει, ῥεῖα δέ τ' ἰθύνει σκολιὸν καὶ ἀγήνορα κάρφει → easily he humbles the proud and raises the obscure, and easily he straightens the crooked and blasts the proud (Hesiod, Works and Days 6-8)
English (LSJ)
ον,
A in harmony, of musical strings, Hsch. s.v. ἀντίχορδα.
German (Pape)
[Seite 971] eigtl. von Saiten, zusammenstimmend, harmonirend, übh. zusammenpassend, Hesych. v. ἀντίχορδα.
Greek (Liddell-Scott)
σύγχορδος: -ον, ἁρμονικός, ὁ ἐν ἁρμονίᾳ, ἐπὶ μουσικῶν χορδῶν, Ἡσύχ. ἐν λ. ἀντίχορδα.