sab·o·tage 
(săbə-täzh′)
(săbə-täzh′)n.
1. The deliberate destruction of property or obstruction of normal operations, as by civilians or enemy agents in a time of war.
2. The deliberate attempt to damage, destroy, or hinder a cause or activity.
tr.v. sab·o·taged, sab·o·tag·ing, sab·o·tag·es
To damage, destroy, or hinder (something) by sabotage.
[French, from saboter, to walk noisily, bungle, sabotage, from sabot, sabot; see SABOT.]