προεμβάλλω
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)
A put in or insert before, ἄμμον εἰς βαλανοδόκην Aen.Tact.18.3; ἐς τὴν ὀπὴν τοὺς πόδας Paus. 9.39.11: metaph., π. τινὶ κατελπισμόν Plb.3.82.8:—Pass., Thphr. Od.18; of words, Arist.Rh.1407a28; to be applied previously, of bandages, Gal.18(1).801. 2 deposit beforehand, ἀρραβῶνα PCair.Zen.637.6(iii B.C.). II abs., προεμβαλλόντων ἐς τὴν γῆν τῶν κερέων the horns butting into the ground in front, of cattle with projecting horns, Hdt.4.183. b project, be prominent, Philostr. Gym.10, cj. in 34. 2 of ships, make the charge (ἐμβολή) first, Th. 4.25: with acc. expressed, π. [τῇ νηΐ] πληγήν Plb.16.3.2: hence, generally, attack before, τινι D.S.15.81. 3 make an inroad before, εἰς τὴν Γαλιλαίαν, ἐς τὴν Ἀρμενίαν, J.BJ2.20.6, D.C.36.45, cf. 37.1.