力ちからづく

godan verb (-ku), intransitive verb

regain strength; recover one's spirit; be invigorated; be encouraged

Describes recovering physical or mental energy, often after fatigue or discouragement. Intransitive; the subject is the person or thing that regains strength.

• 少すこし休やすんだら力ちからづいてきた。

  After resting a little, I started to regain my strength.

• 友とも達だちの励はげましで力ちからづいた。

  I was encouraged by my friend's support.