consign vs send on

consign

verb
  • To assign; to devote; to set apart. 

  • To stamp or impress; to affect. 

  • To send to a final destination. 

  • To entrust to the care of another. 

  • To transfer to the custody of, usually for sale, transport, or safekeeping. 

send on

verb
  • To introduce (a substitute) into the game. 

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