bread-and-butter vs mercantile

bread-and-butter

adj
  • Relating to basic sustenance or the requirements for everyday living. 

  • Used other than figuratively or idiomatically: see bread, and, butter. 

mercantile

adj
  • Of or relating to mercantilism. 

  • Concerned with the exchange of goods for profit. 

How often have the words bread-and-butter and mercantile occurred in a corpus of books? (source: Google Ngram Viewer )