linger vs while away time

linger

verb
  • 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. 

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

while away time

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