μετροποιΐα
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)
ἡ, metrical composition, Longin.Proll.Heph.p.86 C.
German (Pape)
[Seite 164] ἡ, das Machen des Versmaaßes, Versmaaß; Schol. Il. 2, 546; Schol. Ar. Ach. 299.