ad, n. ending

Diweddol, a. conclusive

Diweddu, v. to end, to conclude

Diweddwr, n. a finisher

Diwegi, a. without vanity

Diweirdeb, n. continence

Diweirin, a. continent, chaset

Diweithred, a. without deeds

Diwellau, v. to cease mending

Diwellig, a. not apt to fail

Diwellt, a. without grass

Diwen, a. without smiling

Diweniaeth, a. without flattery

Diwenwyn, a. not venomous

Diwerth, a. worthless

Diwes, a. immediate

Diwest, a. visitless, unvisited

Diwestl, a. without confusion

Diwesu, v. to approximate

Diwg, a. not frowning

Diwir, a. without truth

Diwisg, a. without covering

Diwladaidd, a. not rustic

Diwlith, a. dewless

Diwlydd, a. without vegetation

Diwni, a. seamless

Diwobrwg, a. rewardless

Diwosgo, a. without flinching

Diwosgryn, a. without trembling

Diwraidd, a. without root

Diwregysu, v. to ungirdle

Diwreiddiad, n. eradication

Diwreiddio, v. to eradicate

Diwres, a. without heat

Diwrnod, n. a day

Diwrnodol, a. diurnal

Diwrnodio, v. to do a day's work

Diwrtaith, a. unameliorated

Diwrth, a. without opposition

Diwrthdro, a. without reverting

Diwrtndyn, without contention

Diwrthddadl, a. without controversy or dispute

Diwrtheb, a. uncontradicted

Diwrthladd, a. unrepugnant

Diwrthlam, without recurrence

Diwrthryn, a. without resistance

Diwrthwyneb, a. unopposed

Diwrthymdrech, a. irresistible

Diwryg, a. feeble, infirm

Diwrym, a. seamless

Diwybod, a. unknowing

Diwyd, a. adherence; assiduous, diligent

Diwydiaeth, n. assiduity

Diwydio, v. to be diligent

Diwydrwydd, n. diligence

Diwyg, n. a repaired state: a. not vitiated

Diwygiad, n. reformation

Dwygiadwy, a. reformable

Diwygio, to amend, to reform

Diwygol, a. corrective

Diwygiwr, n. reformer

Diwyl, a. unbashful, impudent

Diwyledd, n. impudence

Diwyll, n. clearance; culture

Diwylliad, n. cultivation

Diwylliant, n. culture, worship

Diwyllio, v. to cultivate

Diwyliodraeth, n. cultivation

Diwyn, a. not white or fair

Diwyniad, n. a dirtying

Diwyno, v. to dirty

Diwyr, a. not oblique, straight

Diwyth, a. without wrath

Diymadferth, a. inactive

Diymanerch, a. ungreeted

Diymarbed, a. unabstemious

Diymarbod, a. unprepared

Diymarfer, a. unaccustomed

Diymattal, a. unrestrained

Diymchwiliad, a. uninquisitive

Diymdaro, a. unable to strive

Diymdro, a. inflexible

Diymddiffyn, a. defenceless