institute vs legislature

institute

noun
  • The building housing such an institution 

  • An organization founded to promote a cause 

  • The person to whom an estate is first given by destination or limitation. 

  • An institution of learning; a college, especially for technical subjects 

verb
  • To invest with the spiritual charge of a benefice, or the care of souls. 

  • To nominate; to appoint. 

  • To begin or initiate (something); to found. 

legislature

noun
  • A legislative building. 

  • A governmental body with the power to make, amend and repeal laws. 

  • The legislative assembly of a province or territory, as opposed to the federal parliament. 

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