精せい根こん

noun

energy; vitality; mental determination

Refers to one's total physical and mental energy, often used in contexts of exhausting or pouring all one's strength into something. Common in set phrases like 精根尽きる (to be completely exhausted) and 精根を傾ける (to devote all one's energy).

• 彼かれは研けん究きゅうに精せい根こんを傾かたむけた。

  He devoted all his energy to his research.

• 長ながい闘とう病びょう生せい活かつで精せい根こん尽つき果はてた。

  After a long battle with illness, he was completely drained of energy.