ῥώθων
From LSJ
προγράψαντες οὖν τά τε θεωρήματα καὶ τὰ ἐπιτάγματα τὰ χρεῖαν ἔχοντα εἰς τὰς ἀποδείξιας αὐτῶν μετὰ ταῦτα γραψοῦμές τοι τὰ προκείμενα → having therefore written at the beginning the theorems and the postulates that are necessary for their proofs, we will then write out for you the propositions
English (LSJ)
ωνος, ὁ,
A nose, Heraclid.Tar. ap. Gal.12.692, Hippiatr.21: mostly in pl., nostrils, Nic.Th.213, Al.117, D.H.Comp.14,22, Str.7.4.8, Poll.2.72, Horap.2.68:—ῥώθυνες· μυκτῆρες, Hsch. (Aeol. ?).