καναχά
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 (Slater)
κᾰνᾰχά
1 shrilling παντᾷ δὲ χοροὶ παρθένων λυρᾶν τε βοαὶ καναχαί τ' αὐλῶν δονέονται (P. 10.39)