κύφωσις
From LSJ
τὰ πρὸ Εὐκλείδου ἐξετάζειν → investigate what happened before the flood, investigate what happened in the distant past, investigate what happened before Euclid, investigate what happened before the year of Euclid
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.