put back vs shelve

put back

verb
  • To postpone an arranged event or appointment. 

  • To turn back; to return. 

  • To change the time in a time zone to an earlier time. 

  • To return something to its original place. 

  • To drink fast; to knock down alcohol. 

shelve

verb
  • To set aside; to quit or postpone. 

  • To place on a shelf. 

  • To furnish with shelves. 

  • To slope; to incline; to form into shelves. 

  • To have sex with. 

  • To take (drugs) by anal or vaginal insertion. 

noun
  • A rocky ledge or shelf. 

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