τοὐπτάνιον
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
Greek (Liddell-Scott)
τοὐπτάνιον: κατ’ Ἀττικ. κρᾶσιν ἀντὶ τὸ ὀπτάνιον, Ἀριστοφ. Ἱππ. 1033.
