relapsing

/R IH0 L AE1 P S IH0 NG/
verb
  1. 1

    To fall back again; to slide or turn back into a former state or practice.

    โ€œHe has improved recently but keeps relapsing into states of utter confusion.โ€

  2. 2

    (of a disease) To recur; to worsen, be aggravated (after a period of improvement).

  3. 3

    To slip or slide back physically; to turn back.

noun
  1. 1

    A relapse.

Source: https://en.wiktionary.org/wiki/relapse, https://en.wiktionary.org/wiki/relapsing