ἐξάγκωνα
From LSJ
τούτων γάρ ἑκάτερον κοινῷ ὀνόματι προσαγορεύεται ζῷον, καί ὁ λόγος δέ τῆς οὐσίας ὁ αὐτός → and these are univocally so named, inasmuch as not only the name, but also the definition, is the same in both cases (Aristotle, Categoriae 1a8-10)
Greek (Liddell-Scott)
ἐξάγκωνα: Ἐπίρρ., μὲ τὰς χεῖρας (δεδεμένας) ὀπίσω, ὀπισθάγκωνα, Θεοφάν. 579. 2 (ἔκδ. Βόνν.)· πρβλ. ὀπισθάγκωνα.