κύφωσις
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)
εως, ἡ, being humpbacked, Hp.Art.41, 47 (pl.), Gal.18(1).74.
Greek (Liddell-Scott)
κύφωσις: ῡ, εως. ἡ, κύρτωσις τῆς ῥάχεως, Ἱππ. π. Ἄρθρ. 812.
Dutch (Woordenboekgrieks.nl)
κύφωσις -εως, ἡ [κυφόομαι] kromming, bochel.