bursar vs coffer

bursar

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

  • A student funded by a bursary. 

coffer

noun
  • A supply or store of money, often belonging to an organization. 

  • An ornamental sunken panel in a ceiling or dome. 

  • A trench dug in the bottom of a dry moat, and extending across it, to enable the besieged to defend it with raking fire. 

  • A strong chest or box used for keeping money or valuables safe. 

  • A cofferdam. 

verb
  • To put money or valuables in a coffer 

  • To decorate something, especially a ceiling, with coffers. 

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