REJUVENATE

[verb] [T] - to make (someone) look or feel young and energetic againShe felt rejuvenated by her fortnight in the Bahamas.If you rejuvenate an organization or system, you make it more efficient and modern by introducing new methods and ideas.He has decided to rejuvenate the team by bringing in a lot of new, young players.Since taking over the family firm, they have completely rejuvenated it.