Source : Webster's Revised Unabridged Dictionary (1913)

Weird \Weird\ (w[=e]rd), n. [OE. wirde, werde, AS. wyrd fate,
   fortune, one of the Fates, fr. weor[eth]an to be, to become;
   akin to OS. wurd fate, OHG. wurt, Icel. ur[eth]r. [root]143.
   See {Worth} to become.]
   1. Fate; destiny; one of the Fates, or Norns; also, a
      prediction. [Obs. or Scot.]

   2. A spell or charm. [Obs. or Scot.] --Sir W. Scott.

Weird \Weird\, a.
   1. Of or pertaining to fate; concerned with destiny.

   2. Of or pertaining to witchcraft; caused by, or suggesting,
      magical influence; supernatural; unearthly; wild; as, a
      weird appearance, look, sound, etc.

            Myself too had weird seizures.        --Tennyson.

            Those sweet, low tones, that seemed like a weird
            incantation.                          --Longfellow.

   {Weird sisters}, the Fates. [Scot.] --G. Douglas.

   Note: Shakespeare uses the term for the three witches in
         Macbeth.

               The weird sisters, hand in hand, Posters of the
               sea and land.                      --Shak.

Weird \Weird\, v. t.
   To foretell the fate of; to predict; to destine to. [Scot.]
   --Jamieson.

Source : WordNet®

Weird
     n : Fate personified; one of the three Weird Sisters [syn: {Wyrd}]