actuate
     v 1: put in motion or move to act; "trigger a reaction"; "actuate
          the circuits" [syn: {trip}, {trigger}, {activate}, {set
          off}, {spark off}, {spark}, {trigger off}, {touch off}]
     2: give an incentive for action; "This moved me to sacrifice my
        career" [syn: {motivate}, {propel}, {move}, {prompt}, {incite}]
Source: WordNet® 2.0