LSJ
ἡ, place covered with dust; hence, rolling place, such as birds make in the dust, ib. 613b9.
arena in a wrestling school, Lyc. 867, Plu. 2.638c; δρόμοι καὶ κ. καὶ γυμνάσια Ael. NA 11.10, cf. 6.15, Eust. 382.32; also in a theatre, Suid. s.v. σκηνή.
Liddell-Scott-Jones, Greek-English Lexicon (9th ed., 1940)