avocation vs employ

avocation

noun
  • Pursuits; duties; affairs which occupy one's time; usual employment; vocation. 

  • The calling of a case from an inferior to a superior court. 

  • That which calls one away from one's regular employment or vocation. 

  • A hobby or recreational or leisure pursuit. 

employ

noun
  • The state of being an employee; employment. 

verb
  • To hire (somebody for work or a job). 

  • To use (somebody for a job, or something for a task). 

  • To make busy. 

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