κύρτη
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)
ἡ,
A = κύρτος, weel, lobster-pot, Hdt.1.191, D.S.3.19; used as a sieve or riddle, σχοινίδι κ. Nic.Al.625. 2 bird-cage, Archil.177.