Lewis & Short

Ignĭpŏtens, entis, adj. [ignis-potens], potent in fire, ruler of fire, ignipotent, a poet. epithet of Vulcan (Vergilian): deus, Verg. A. 12, 90.
Also as subst.: Ignĭpŏ-tens = Vulcan, id. ib. 8, 414; 423; 628; 710; 10, 243.