εὐγώνιος
From LSJ
ἐν πίθῳ ἡ κεραμεία γιγνομένη → trying to run before you can walk, the potter's art starting on a big jar
English (LSJ)
ον,
A with regular angles, X.Oec.4.21, Arist.Pr.912b15; with perfect angles, four square, of blocks, IG22.1666A64, etc.; right-angled, Gal.18(2).856.
German (Pape)
[Seite 1060] gut-, geradwinkelig; Eur. Ion 1037 πλέθρου μῆκος; Xen. Oec. 4, 21 u. Sp.
Greek (Liddell-Scott)
εὐγώνιος: -ον, ἔχων κανονικὰς γωνίας, Ξεν. Οἰκ. 4, 21, Ἀριστ. Προβλ. 15. 11, 1, Εὐρ. Ἴων 1137.