unfatigue
/ˌʌnˈfætɪɡ/Definitions
1. verb
to remove or relieve fatigue, especially from hard or prolonged mental or physical work
“The break helped unfatigue the team, allowing them to continue working efficiently.”
2. noun
the act of removing or relieving fatigue, especially from hard or prolonged mental or physical work
“Unfatigue was essential for the athletes to recover from their long training session.”