ὀρκῆσι
From LSJ
τούτου δὲ συμβαίνοντος ἀναγκαῖον γίγνεσθαι πάροδον καὶ τροπὰς τῶν ἐνδεδεμένων ἄστρων → but if this were so, there would have to be passings and turnings of the fixed stars
English (LSJ)
barbarism for ὀρχῆται, Ar.Th.1179.
Greek (Liddell-Scott)
ὀρκῆσι: βαρβαρισμὸς ἀντὶ ὀρχησάσθω, Ἀριστοφ. Θεσμ. 1179.
Russian (Dvoretsky)
ὀρκῆσι: Arph. в произнош. скифа (= ὀρχησάσθω) пускай пляшет.