εὔχλοος
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)
ον, contr. εὔχλους, ουν, (χλόη)
A fresh and green, epith. of Demeter, S.OC1600, cf. Nonn.D.41.15.