Dyfnawd, n. profundity
Dyfnder, n. deepness
Dyfnu, v. to suck; to be used
Dyfod, v. to come; to be: to come to pass
Dyfodiad, n. a coming
Dyfodiant, n. futurity
Dyfodol, a. adventitious, coming future
Dyfolio, v. to guzzle
Dyfrrâd, n. irrigation
Dyfrâu, v. to irrigate