senescent

And now, as the night was senescent / ⁠And star-dials pointed to morn— / ⁠As the star-dials hinted of morn— / At the end of our path a liquescent / ⁠And nebulous lustre was born

When such lines and forms of organic development prevail, the individual, as the cell of the body, becomes soon senescent, drifting inevitably into age, decay, and death.