The Collaborative International Dictionary of English v.0.48:

Stone \Stone\, v. t. [imp. & p. p. Stoned; p. pr. & vb. n.
   Stoning.] [From Stone, n.: cf. AS. st?nan, Goth.
   stainjan.]
   1. To pelt, beat, or kill with stones.
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            And they stoned Stephen, calling upon God, and
            saying, Lord Jesus, receive my spirit. --Acts vii.
                                                  59.
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   2. To make like stone; to harden.
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            O perjured woman! thou dost stone my heart. --Shak.
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   3. To free from stones; also, to remove the seeds of; as, to
      stone a field; to stone cherries; to stone raisins.
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   4. To wall or face with stones; to line or fortify with
      stones; as, to stone a well; to stone a cellar.
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   5. To rub, scour, or sharpen with a stone.
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WordNet (r) 3.0 (2006):

stoning
    n 1: the act of pelting with stones; punishment inflicted by
         throwing stones at the victim (even unto death) [syn:
         stoning, lapidation]