Source : Webster's Revised Unabridged Dictionary (1913)

Electrocute \E*lec"tro*cute`\, v. t. [Electro- + cute in
   execute.]
   To execute or put to death by electricity. --
   {E*lec`tro*cu"tion}, n.

   Note: [Recent; Newspaper words]

Source : WordNet®

electrocution
     n 1: execution by electricity [syn: {burning}]
     2: killing by electric shock