discontinue vs linger

discontinue

verb
  • To consciously cease the ingestion or administration of (a pharmaceutical drug). 

  • To interrupt the continuance of; to put an end to, especially as regards commercial productions; to stop producing, making, or supplying. 

linger

verb
  • To stay or remain in a place or situation, especially as if unwilling to depart or not easily able to do so. 

  • To remain alive or existent although still proceeding toward death or extinction; to die gradually. 

  • To consider or contemplate for a period of time; to engage in analytic thinking or discussion. 

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