σκιαμαχία

English (LSJ)

ἡ,

   A a fighting against a shadow: esp. a form of exercise with hands and feet, Ph.1.153.    2 metaph., fighting with a shadow, mock-fight, 'beating the air', Cic.Fam.11.14.1 (pl.), Plu.2.514d, Eust.663.16; title of satire by Varro, Non.p.190 L.—σκιομαχία is a later form, Gal.6.146.