凋谢 (凋謝) diāo​xiè
pass away verb
to die or fade away; to be wizened or shriveled (often used metaphorically for people or eras)

The masters of the older generation have passed away one by one, which is truly regrettable.

wither verb
to wither and fall or to wilt (used typically for flowers and leaves)

Due to the lack of sunlight, these flowers withered before they could even bloom.