εἴληγμαι

From LSJ

ἔξαψις σφοδρὰ μετὰ πολλῆς βίας πίπτουσα ἐπὶ γῆς → a violent flare-up falling on the ground with great force, thunder and lightning

Source

Greek Monotonic

εἴληγμαι: Παθ. παρακ. του λαγχάνω.

Russian (Dvoretsky)

εἴληγμαι: pf. pass. к λαγχάνω.