noun, noun or participle which takes 'suru'
wasting away and dying; becoming emaciated and dying
Rare, literary term for the process of growing thin and weak until death. Often used in medical or poetic descriptions of decline.
長い闘病の末、彼は衰死した。
After a long illness, he wasted away and died.
その詩人は孤独の中で衰
The poet depicted an old man wasting away in solitude.