Source : Webster's Revised Unabridged Dictionary (1913)

Murder \Mur"der\, v. t. [imp. & p. p. {Murdered}; p. pr. & vb.
   n. {Murdering}.] [OE. mortheren, murtheren, AS. myr?rian;
   akin to OHG. murdiren, Goth. ma['u]r?rjan. See {Murder}, n.]
   1. To kill with premediated malice; to kill (a human being)
      willfully, deliberately, and unlawfully. See {Murder}, n.

   2. To destroy; to put an end to.

            [Canst thou] murder thy breath in middle of a word?
                                                  --Shak.

   3. To mutilate, spoil, or deform, as if with malice or
      cruelty; to mangle; as, to murder the king's English.

   Syn: To kill; assassinate; slay. See {Kill}.