εὐξύμβλητος
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)
εὐξύμβολος, εὐξυνεσία, εὐξύνετος, Att. for εὐς-.
German (Pape)
[Seite 1084] -ξύμβολος, -ξύνετος, att. für εὐσύμβλητος u. s. w.