ἐπιβροντάω
From LSJ
Ποιητὴς, ὁπόταν ἐν τῷ τρίποδι τῆς Μούσης καθίζηται, τότε οὐκ ἔμφρων ἐστίν → Whenever a poet is seated on the Muses' tripod, he is not in his senses
English (LSJ)
A thunder in response, Plu.Marc.12: impers., it thunders as well, Ps.-Gem.Calend.p.183W.
German (Pape)
[Seite 931] dazu donnern, Plut. Marcell. 12.
Greek (Liddell-Scott)
ἐπιβροντάω: βροντῶ μετά τι, ἐπιβροντήσαντος δὲ τοῦ θεοῦ Πλουτ. Μάρκελλ. 12.