involve vs rescue

involve

verb
  • To complicate or make intricate. 

  • To take in; to gather in; to mingle, blend or merge. 

  • To cause or engage (someone or something) to participate or to become connected or implicated. 

  • To comprise or include; to have as a related part. 

  • To envelop, enfold, entangle. 

rescue

verb
  • To achieve something positive under difficult conditions. 

  • To recover forcibly. 

  • To free or liberate from confinement or other physical restraint. 

  • To save from any violence, danger or evil. 

  • To deliver by arms, notably from a siege. 

  • To remove or withdraw from a state of exposure to evil and sin. 

noun
  • A rescuee. 

  • A liberation, freeing. 

  • An act or episode of rescuing, saving. 

  • The forcible ending of a siege; liberation from similar military peril 

  • A special airliner flight to bring home passengers who are stranded 

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