facade vs recto

facade

noun
  • The face or front (most visible side) of any other thing, such as an organ. 

  • A deceptive or insincere outward appearance. 

  • An object serving as a simplified interface to a larger body of code, as in the facade pattern. 

  • The face of a building, especially the front view or elevation. 

recto

noun
  • The front side of a flat object which is to be examined visually, as for reading, such as a sheet, leaf, coin or medal. 

  • The right-hand page of a book of a script which reads from left to right, usually having an odd page number. 

  • A writ of right. 

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