Dadfrochi, v. to unruffle
Dadfrythu, v. to quell a tumult
Dadfyddaru, v. to cure of deafnes
Dadffrydiant, n. a reflux
Dadffrydio, v. to flow back
Dadgadwyno, v. to unchain
Dadgaenu, to take off a surface
Dadgaeru, v. to dismantle or to reduce a fortification
Dadgaethu, v. to disenthral
Dadgan, n. a recital; repetition