Source : Webster's Revised Unabridged Dictionary (1913)

Run \Run\, a.
   1. Melted, or made from molten material; cast in a mold; as,
      run butter; run iron or lead.

   2. Smuggled; as, run goods. [Colloq.] --Miss Edgeworth.

   {Run steel}, malleable iron castings. See under {Malleable}.
      --Raymond.