bursar vs merchandiser

bursar

noun
  • The treasurer of a university, college or school. 

  • A student funded by a bursary. 

merchandiser

noun
  • A trader, seller or merchant, especially in the retail trade. 

  • An arcade machine which dispenses prizes to winners. 

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