ravis
From LSJ
ἔξαψις σφοδρὰ μετὰ πολλῆς βίας πίπτουσα ἐπὶ γῆς → a violent flare-up falling on the ground with great force, thunder and lightning
Latin > English (Lewis & Short)
rāvis: acc. ravim, f. kindr. with ravus, q. v.,
I hoarseness (ante- and post-class., and only occurring in the acc. sing.): usque ad ravim poscam, Plaut. Aul. 2, 5, 10: expurigabo hercle omnia ad raucam ravim, id. Fragm. ap. Non. 164, 19: (tragoedi) boando purgant ravim, App. Flor. p. 357, 36.