relapse
verb
[ rɪˈlaps ]
• (of a sick or injured person) deteriorate after a period of improvement.
• "two of the patients in remission relapsed after 48 months"
Similar:
get ill/worse again,
have/suffer a relapse,
worsen,
deteriorate,
degenerate,
take a turn for the worse,
sicken,
weaken,
fail,
sink,
relapse
noun
• a deterioration in someone's state of health after a temporary improvement.
• "he responded well to treatment, but then suffered a relapse"
Origin:
late Middle English: from Latin relaps- ‘slipped back’, from the verb relabi, from re- ‘back’ + labi ‘to slip’. Early senses referred to a return to heresy or wrongdoing.
