energise

from WordNet (r) 3.0 (2006)

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

from The Collaborative International Dictionary of English v.0.48

energise \energise\ v. i. & t.
   Same as {energize}. [mostly British]

   Syn: stimulate, arouse, brace, energize, perk up.
        [WordNet 1.5]