overlook vs viewport

overlook

noun
  • A vista or point that gives a beautiful view. 

verb
  • To offer a view (of something) from a higher position. 

  • To fail to notice; to look over and beyond (anything) without seeing it. 

  • To pretend not to have noticed (something, especially a mistake or flaw); to pass over (something) without censure or punishment. 

viewport

noun
  • A viewing window. 

  • A typically rectangular region representing the range or area currently visible (within a window, screen, etc.). 

verb
  • To clip (an image or region) so that it fits in a viewport. 

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