abstain vs employ

abstain

verb
  • Refrain from (something or doing something); keep from doing, especially an indulgence. 

  • Deliberately refrain from casting one's vote at a meeting where one is present. 

employ

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

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

  • To make busy. 

noun
  • The state of being an employee; employment. 

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