expression, godan verb (-u)
restore one's energy; recharge one's batteries; restore one's spirits
Used when someone recovers mental or physical vitality, often through rest, a change of pace, or a refreshing activity.
週末は温泉で英気を養った。
I restored my energy at a hot spring over the weekend.
少し休んで英気を養おう。
Let's take a short break and recharge our batteries.