recovery vs recrudescence

recovery

noun
  • A return to normal health. 

  • The recovery of debt. 

  • The act of regaining the position of guard after making an attack, in fencing, sparring, etc. 

  • A verdict giving somebody the right to recover debts or costs. 

  • The extraction of an ore from a mine, or of a metal from an ore 

  • The ability to recover or regain health. 

  • The act or process of regaining or repossession of something lost. 

  • Renewed growth after a slump. 

  • The act of regaining the natural position after curtseying. 

recrudescence

noun
  • The acute recurrence of a disease, or its symptoms, after a period of improvement. 

  • The condition or state being recrudescent; the condition of something (often undesirable) breaking out again, or re-emerging after temporary abatement or suppression. 

  • The production of a fresh shoot from a ripened spike. 

How often have the words recovery and recrudescence occurred in a corpus of books? (source: Google Ngram Viewer )