精せいも根こんも尽つき果はてる

expression, ichidan verb

use up all energy and willpower; be completely exhausted and lose the will to go on

Describes a state of total physical and mental depletion where one can no longer continue. Often used in narrative or emphatic contexts.

• 徹てつ夜や続つづきで精せいも根こんも尽つき果はてた。

  After pulling all-nighters, I was completely exhausted and had no will to go on.

• 彼かれは長ながい闘とう病びょう生せい活かつで精せいも根こんも尽つき果はててしまった。

  He used up all his energy and willpower during his long illness.