relapse:1

noun
re*lapse \ ri-ˈlaps \ ˈrē-ˌlaps \
15th century{ds||1||}
  • the act or an instance of backsliding, worsening, or subsiding
  • a recurrence of symptoms of a disease after a period of improvement

relapse:2

verb
re*lapse \ ri-ˈlaps \
circa 1534{ds||1||}
  • to slip or fall back into a former worse state
  • sink, subside
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