θὤμισυ
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
German (Pape)
[Seite 1230] = τὸ ἥμισυ, Hes. O. 561.
Greek (Liddell-Scott)
θὤμισυ: Ἐπικ. κρᾶσις ἀντὶ τὸ ἥμισυ, Ἡσ. Ἔργ. κ. Ἡμ. 557.
Greek Monotonic
θὤμισυ: κράση αντί τὸ ἥμισυ.