dad

Meanings

1. 1
   noun

   A father; a male parent (informal).

   His dad was always there to support him.

2. 2
   noun

   Used when speaking directly to your father.

   Happy Father's Day, Dad!

From Early Modern English dadd, dadde (circa 1500), undoubtedly older, from unrecorded Middle English *dadde, of uncertain ultimate origin. Compare West Frisian deite (“dad, daddy”), Swabian Dede (“Godfather”). * Perhaps of Celtic origin, compare Welsh and Breton tad (from Proto-Brythonic *tad), Old Irish data; and possibly related to Russian дя́дя (djádja, “uncle”) and/or Russian де́душка (déduška, “grandfather”), all imitative. In Welsh, when subject to soft mutation (which occurs in vocative contexts, among others), tad becomes dad. * Perhaps imitative of a child's first uttered syllables d…

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