σφαιριστήριον
From LSJ
δόξειε δ' ἂν τῆς κυριωτάτης καὶ μάλιστα ἀρχιτεκτονικῆς. τοιαύτη δ' ἡ πολιτικὴ φαίνεται → It would seem to belong to the most authoritative art and that which is most truly the master art. And politics appears to be of this nature.
English (LSJ)
τό,
A ball-court, Thphr. Char.5.9, IG11(2).199A110 (Delos, iii B.C.), BCH23.566 (Delph., iii B.C.), Phld.Herc.1457.7, POxy.1450.5 (iii A.D.).
