dad-

See also: Appendix:Variations of "dad"

Welsh

Alternative forms

• dat- (before b, d, dd, g, s)

Etymology

From Proto-Celtic *do-ate-, equivalent to dy- +‎ ad-. Cognate with Cornish das-.

Pronunciation

• IPA^(key): /dad/

Prefix

dad-

1. undo, un-, dis-

   Synonym: dat-

   ‎dad- + ‎pacio (“to pack”) → ‎dadbacio (“to unpack”)

   ‎dad- + ‎gwneud (“to do”) → ‎dad-wneud (“to undo”)

   ‎dad- + ‎llwytho (“to load”) → ‎dadlwytho (“to unload”)

2. re-

   Synonym: dat-

   ‎dad- + ‎ennill (“to win, to earn”) → ‎dadennill (“to regain”)

Derived terms

Welsh terms prefixed with dad-

Mutation

Mutated forms of dad-

radical	soft	nasal	aspirate
dad-	ddad-	nad-	unchanged

Note: Certain mutated forms of some words can never occur in standard Welsh.
All possible mutated forms are displayed for convenience.