convalescence vs therapy

convalescence

noun
  • The period of time spent healing. 

  • A gradual healing after illness or injury. 

therapy

noun
  • Healing power or quality. 

  • Attempted remediation of a health problem following a diagnosis, usually synonymous with treatment. 

  • Specifically, psychotherapy. 

verb
  • To treat with a therapy. 

  • To undergo a therapy. 

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