Source : Webster's Revised Unabridged Dictionary (1913)

Sabotage \Sa`bo`tage"\, n. [F.]
   (a) Scamped work.
   (b) Malicious waste or destruction of an employer's property
       or injury to his interests by workmen during labor
       troubles.

Source : WordNet®

sabotage
     n : a deliberate act of destruction or disruption in which
         equipment is damaged
     v : destroy property or hinder normal operations; "The
         Resistance sabotaged railroad operations during the war"
         [syn: {undermine}, {countermine}, {counteract}, {subvert},
          {weaken}]