earn vs employ

earn

verb
  • To cause (someone) to receive payment or reward. 

  • To achieve by being worthy of. 

  • To receive payment for work. 

  • To gain (success, reward, recognition) through applied effort or work. 

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 earn and employ occurred in a corpus of books? (source: Google Ngram Viewer )