εἰρομένως
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. running on: in order, PSI4.439 (iii B. C.); in continuation, Apollon.Cit.2.
Spanish (DGE)
adv. a continuación, seguidamente ἵνα εἰ. γράφωμεν τὰ λοιπὰ PCair.Zen.357.15 (III a.C.), cf. Apollon.Cit.2.10, 3.27.