μογιλάλος
From LSJ
ἔστιν δέ που ἡ μὲν ἐπὶ σώμασι γυμναστική, ἡ δ' ἐπὶ ψυχῇ μουσική → I think I am right in saying that we have physical exercise for the body and the arts for the soul
English (LSJ)
[ᾰ], ον, (μόγις, λαλέω)
A having an impediment in one's speech, LXXIs.35.6, Ev.Marc.7.32, Ptol.Tetr.150, Vett.Val.73.12, Aët. 8.38.