ἐπιστάτις

ἐπιστᾰτ-ις, ιδος, ἡ, fem. of ἐπιστάτης, οὐ γὰρ μουσικὴ τούτων ἐ. Aristid.Quint. 2.6, cf. Corn. ND 20, Sch. Ar. Th. 380.