Ufelai, n. oxygen
Ufelier, n. what flames out
Ufelu, v. to generate fire
Ufelyddiad, n. ignition
Ufell, a humble, obsequous
Ufudd, a. humble, obedient
Ufudd-dod, n. obedience
Ufuddgar, a. obsequous, meek
Ufuddâd, n. humiliation
Ufuddâu, v. to obey, to be humble