employ vs while away

employ

verb
  • To make busy. 

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

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

noun
  • The state of being an employee; employment. 

while away

verb
  • To spend (time) idly but pleasantly 

  • To elapse, to pass. 

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