καλλιστεῖα
From LSJ
τὸ ἀνάλημμα καὶ τὴν ἐπ' αὐτοῦ κερκίδα → the retaining wall and the wedge of theatre seats supported by it
English (Woodhouse)
(see also: καλλιστεῖον) meed of beauty, meed of valour, prize of beauty, prize of valor, prize of valour