ὑπορχ-έομαι · hyporch-eomai — LSJ
dance with or to music, πρὸς δὲ καρδίᾳ φόβος ᾄδειν ἕτοιμος ἠδʼ (fort. ἡ δʼ) ὑπορχεῖσθαι A. Ch. 1025: c. acc. cogn., ὄρχησιν ὑ. Plu. Num. 13; ὑ. γόους sing and dance a lament, Hld. 6.8.
sing and dance a character, of a pantomimic actor, Luc. Salt. 16.