sciamachy (n.) Look up sciamachy at Dictionary.com
"fighting with shadows, shadow-boxing" 1620s, from Greek skiamakhia "shadow-fighting, a sham fight" but perhaps literally "fighting in the shade" (i.e., in school; ancient teachers taught in shaded public places such as porches and groves), from skia "shade, shadow," from PIE root *skai- (2) "to gleam, shine, flicker" (see shine (v.)) + makhe "battle" (see -machy).