τεθορυβημένως
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)
Adv., (θορυβέω)
A tumultuously, in a disorderly manner, ἀποχωρεῖν X.HG5.3.5.
German (Pape)
[Seite 1079] adv. part. perf. pass. von θορυβέω, mit Lärm, mit Unordnung, ἀποχωρεῖν, Xen. Hell. 5, 3, 5.