adobe vs cobblestone

adobe

noun
  • The earth from which such bricks are made. 

  • An unburnt brick dried in the sun. 

  • A house made of adobe brick. 

cobblestone

noun
  • The material made from cobblestones. 

  • A rounded stone from a river bed, fit for use as ballast in ships and for paving roads. 

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