employ vs keep from

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. 

keep from

verb
  • To prevent or restrain (someone or something) from; to refrain or cause to refrain from. 

  • To make and cause to remain secret. 

  • To protect or preserve from. 

  • To cause to be excluded or not present. 

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