expression, suru verb (irregular)
prepare for death; get ready to die
Used when someone mentally or practically prepares for the possibility or certainty of death, often in serious or dramatic contexts.
彼は戦場で死を覚悟していた。
He was prepared to die on the battlefield.
医者から余命を告げられ、彼女
After the doctor told her how long she had left, she quietly prepared herself for death.