institute vs ledge

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. 

ledge

noun
  • A provincial or territorial legislature building. 

  • A shelf, ridge, or reef, of rocks. 

  • A provincial or territorial legislative assembly. 

  • A cornice. 

  • A (door or window) lintel. 

  • A piece of timber to support the deck, placed athwartship between beams. 

  • A lode; a limited mass of rock bearing valuable mineral. 

  • A layer or stratum. 

  • A shelf on which articles may be laid; also, that which resembles such a shelf in form or use, as a projecting ridge or part, or a molding or edge in joinery. 

verb
  • To cause to have, or to develop, a ledge (during mining, canal construction, building, etc). 

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