vendee vs vendor

vendee

noun
  • The person to whom something is sold; a purchaser. 

vendor

noun
  • A person or a company that vends or sells. 

  • A vending machine. 

verb
  • As the software vendor, to bundle one's own, possibly modified version of dependencies with a standard program. 

  • To bundle third-party dependencies with the source code for one's own program. 

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