inquisition vs legwork

inquisition

noun
  • An inquiry or investigation into the truth of some matter. 

  • A questioning. 

  • An inquest. 

  • The finding of a jury, especially such a finding under a writ of inquiry. 

legwork

noun
  • Work, especially research or preparation, that involves significant walking, travel, or similar effort. 

  • Skillful or vigorous use of the legs, as in dance or sports. 

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