Recrudescence

Noun

1. The condition or state being recrudescent; the condition of something (often undesirable) breaking out again, or re-emerging after temporary abatement or suppression. .mw-parser-output .defdate{font-size:smaller}
2. The acute recurrence of a disease, or its symptoms, after a period of improvement.
3. The production of a fresh shoot from a ripened spike.