shelve vs trephine

shelve

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

  • 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. 

noun
  • A rocky ledge or shelf. 

trephine

verb
  • To use a trephine during surgery. 

  • To perforate with a trephine. 

noun
  • A surgical instrument with a cylindrical blade used to remove a circular section of tissue, f.e. bone or cornea; a trepan. 

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