ὀρχ-ηστής · orch-ēstēs — LSJ
dancer, Il. 16.617, 24.261, IG 1(2).785,919, Epich. 171, Pi. Fr. 148, Pl. Euthd. 276d, OGI 51.45 (Ptolemais, iii B. C.), etc. ; later esp. pantomimic dancer, αὐτῷ τῷ ῥυθμῷ μιμοῦνται αἱ τῶν ὀ. Arist. Po. 1447a27, cf. Luc. Salt. 67; ὀ. οἱ ἐς τὰς μαχαίρας ὀρούοντες Democr. 228.