ἀμφίπυρος
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, (πῦρ)
A with fire at each end, of the double-pointed thunderbolt, E.Ion212; βροντά Id.Hipp.559; δειράδες Παρνασοῦ . . ἵνα Βάκχιος ἀμφιπύρους ἀνέχων πεύκας . . πηδᾶ with twin fires, of two peaks of Parnassus, Id.Ion716; of Artemis as bearing a torch in either hand, S.Tr.214 (lyr.). II with fire all round, τρίποδες Id.Aj.1405.
German (Pape)
[Seite 142] rings von Feuer umgeben, umflammt, Soph., τρίπους Ai. 1384; Tr. 213 Artemis, mit zwei Fackeln; Eur., κεραυνός Ion 213 ch.; βροντή Hipp. 559; πεῦκαι Ion 716.