Dying away
Decline and dying away are semantically related. In some cases you can use "Decline" instead a noun phrase "Dying away".
Decline
Decline noun - A gradual sinking and wasting away of mind or body.
Cite this Source
Decline and Dying away. (2016). Retrieved 2026, August 09, from https://thesaurus.plus/related/dying_away/decline
Dying away & Decline. N.p., 2016. Web. 09 Aug. 2026. <https://thesaurus.plus/related/dying_away/decline>.
Decline or Dying away. 2016. Accessed August 09, 2026. https://thesaurus.plus/related/dying_away/decline.
Google Ngram Viewer shows how "dying away" and "decline" have occurred on timeline