summit vs superficies

summit

noun
  • A peak; the topmost point or surface, as of a mountain. 

  • A gathering or assembly of leaders. 

pron
  • Something 

verb
  • To reach the summit of a mountain. 

superficies

noun
  • The area of a two-dimensional surface. 

  • The surface (of something immaterial, especially of the mind or soul). 

  • A building intimately associated with the land on which it is built. 

  • The visible, external surface of a body. 

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