κατ-αστράπτω · kat-astraptō — LSJ
hurl down lightning, flash lightning, κατʼ Οἰταῖον νάπος S. Tr. 437: abs., καταστράπτει it lightens, Plu. Galb. 23.
trans., strike with lightning, dazzle, τὰς ὄψεις Id. Tim. 28; τινα Them. Or. 27.337d; τινὰ τῷ κάλλει Hld. 1.21; ὅπλοις κ. τὸ πεδίον make it gleam with arms, Id. 9.14.