bursar vs depository

bursar

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

  • A student funded by a bursary. 

depository

noun
  • A trustee; a depositary. 

  • A place where something is deposited, as for storage, safekeeping, or preservation; a repository. 

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