ἐκφάνεια
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)
[φᾰ], ἡ, A emergence above horizon, Epicur.Ep.2p.40U.
Spanish (DGE)
-ας, ἡ
astr. aparición brillante, orto de un astro ὑπὲρ γῆς Epicur.Ep.[3] 92, τῶν νοερῶν θεῶν ἐ. Herm.in Phdr.139, crist., ref. la epifanía de Dios τὴν ἐκφάνειαν ἀγγελίαν ὀνομάζων Apoll.Ps.96.1-6.