ἐσκάλισις
From LSJ
εἰ ἀποκρυπτόντων τῶν Μήδων τὸν ἥλιον ὑπὸ σκιῇ ἔσοιτο πρὸς αὐτοὺς ἡ μάχη καὶ οὐκ ἐν ἡλίῳ → if the Medes hid the sun, the battle would be to them in the shade and not in the sun
English (LSJ)
εως, ἡ, prob. A packing in a wooden crate (cf. κᾶλον), IG4.1485.85 (Epid.); cf. παρκάλισις and perh. διακάλισις, unless all three words belong to καλινδέω (καλίω).