πρόσχορδος
From LSJ
οὗτος ἐγὼ ταχυτᾶτι· χεῖρες δὲ καὶ ἦτορ ἴσο → this is my speed: my hands and heart are its equal, such am I for speed; my hands and heart are just as good
English (LSJ)
ον, (χορδή)
A attuned to a stringed instrument: generally, in unison with, ἀποδιδόναι πρόσχορδα τὰ φθέγματα τοῖς φθέγμασι bring voices into unison with voices, Pl.Lg.812d, cf. Poll.4.58,63.