坐禪三昧經 2.85

2.85

云何死？一切眾生處處退、落、墮、滅、斷、死，失壽命盡，是名死。先老後死，故名老死。

What is death? For all sentient beings, in various places, declining, falling, descending, perishing, being severed, dying, and the termination and exhaustion of life-span; this is called death. Aging precedes and death follows; therefore it is called aging and death.