πολύφρων
From LSJ
ἔξαψις σφοδρὰ μετὰ πολλῆς βίας πίπτουσα ἐπὶ γῆς → a violent flare-up falling on the ground with great force, thunder and lightning
English (LSJ)
ον, gen. ονος, (φρήν)
A ingenious, inventive, Il.18.108, al.; epith. of Odysseus, Od.14.424; of Hephaestus, Il.21.367, Od.8.297; ἄλοχος Q.S.1.727: Sup. -έστατος Euryph. ap. Stob.4.39.27. 2 embodying much thought, ἀτρέκεια Orac. ap. Dam.Pr.161.
German (Pape)
[Seite 676] ον, sehr verständig, klug, stets in gutem Sinne; Il. 18, 108; so heißt Hephästus, 21, 367 u. öfter, wie Odysseus, Od. 14, 424. 20, 239. – Auch nom. pr.