n. whirlwind, vortex

Wuld nah kest!
Whirlwind fury tempest!
(Whirlwind Sprint Shout)

Master Borri will teach you “Wuld,” which means “Whirlwind.”
(Arngeir, 00078B3E)

Even we who ride the currents of Time cannot see past Time's end. Wuldsetiid los tahrodiis.
Wuldsetiid los tahrodiis = “the whirlwind/vortex of time is treacherous/turbulent”
(Paarthurnax, 00055771)

Het nok kopraan do Wynjolf ahrk Wuld, wen viintaas tuz vey zeim lahvu do rahgron Ogiim.
Here lies the body of Wynjolf the Whirlwind, whose shining blades cut through an army of angry Orcs.
(Word Wall for Wuld, Whirlwind Sprint)

Word of Power, associated with the turbulence, unpredictability, and power of the wind and sky.