u, f. a mist; cp. the mod. dumbungr, m. a dark, misty, gloomy sky. dumbungs-veðr, m. gloomy weather. In the east of Icel. dumba is the bran of oats when ground, Fél. ii. 155; in Edda (Gl.) it is even mentioned as a sort of seed; hann (the wizard) hristi einn poka, ok þar ór fýkr ein dumba svört (black powder like mist) … blés þar ór vindi miklum móti dumbunni, svá at hon fauk aptr í augu á Gríms mönnum, svá þeir urðu þegar blindir, Fas. iii. 338. dumbr, m. id., also occurs as a name of a giant, the misty; the Polar Sea is called Dumbs-haf = the Misty, Foggy Sea, cp. Bárð. ch. 1; cp. also Gr. τυφος, τυφών, which probably are kindred words.