awaken vs send to sleep

awaken

verb
  • To cause to become aware. 

  • To call to a sense of sin. 

  • To cause to become awake. 

  • To bring into action (something previously dormant); to stimulate. 

  • To stop sleeping; awake. 

send to sleep

How often have the words awaken and send to sleep occurred in a corpus of books? (source: Google Ngram Viewer )