γύμνᾰσ-μα · gymnas-ma — LSJ
an exercise, γ. καὶ ἀσκήματα τῆς ῥητορικῆς D.H. Rh. 2.1, cf. J. Ap. 1.10, Plu. Col. 2.1119d; γ. τῆς ψυχῆς Ph. 1.590: in pl., rhetorical text-books, Theo Prog. 1.
physical exercises, Ruf. ap. Orib. inc. 2.15, Luc. Anach. 8, Ath. 10.413c.