εἰκοστάγωνος
From LSJ
ὁμοῦ ἦν καὶ ἔχειν τὴν πόλιν καὶ τὸ γένος ὅλον μετὰ τῆς πόλεως → it was much the same thing to have the city and to have the whole race together with the city
German (Pape)
[Seite 727] s. εἰκοσάγωνος.
Greek (Liddell-Scott)
εἰκοστάγωνος: -ον, ἔπρεπε νὰ εἶναι εἰκοσάγωνος, εἴκοσι γωνίας ἔχων, Ἰάμβλ. ἐν Βίῳ Πυθ. 34.