Udgorn, n. a trumpet
Udiad, n. a howling, a yelling
Udlef, n. a howling voice
Udo, v. to howl, to yell
Udol, a. howling, yelling
Udon, n. a solemn cry
Udoniad, n. an imprecation
Udoniaeth, n. imprecation
Udd, n. what is over; a chief
Uf, n. what is over or spread