prexy vs proctor

prexy

noun
  • A president, especially of a college or university. 

proctor

noun
  • An official at any of several older universities. 

  • A person who supervises students as they take an examination, in the United States at the college/university level; often the department secretary, or a fellow/graduate student; an invigilator. 

  • A legal practitioner in ecclesiastical and some other courts. 

  • A procurator or manager for another. 

  • A representative of the clergy in convocation. 

verb
  • to manage as an attorney or agent 

  • to function as a proctor 

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