perk up

Verb

• cause to be alert and energetic
  • Coffee and tea stimulate me
    
  • This herbal infusion doesn't stimulate
    

• gain or regain energy
  • I picked up after a nap
    

Related words

• Synonyms: 
  stimulate , arouse , brace , energize , energise , perk , percolate , pick up , gain vigor
• Antonyms: 
  de-energize , de-energise , sedate , calm , tranquilize , tranquillize , tranquillise