πεδιονόμος
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)
ον,
A dwelling in the plain, π. θεοί rural deities, A.Th. 272.
German (Pape)
[Seite 541] die Ebenen oder die Felder bewohnend, von Göttern, Aesch. Spt. 254.