Source : Webster's Revised Unabridged Dictionary (1913)

Lapidate \Lap"i*date\, v. t. [L. lapidatus, p. p. of lapidare,
   fr. lapis stone.]
   To stone. [Obs.]

Source : WordNet®

lapidate
     v 1: kill by throwing stones at; "Adulterers should be stoned
          according to the Koran" [syn: {stone}]
     2: throw stones at