Source : WordNet®

energise
     v 1: raise to a higher energy level; "excite the atoms" [syn: {excite},
           {energize}]
     2: cause to be alert and energetic; "Coffee and tea stimulate
        me"; "This herbal infusion doesn't stimulate" [syn: {stimulate},
         {arouse}, {brace}, {energize}, {perk up}] [ant: {de-energize},
         {de-energize}, {sedate}]