dilate vs shorten

dilate

verb
  • To enlarge; to make bigger. 

  • To speak largely and copiously; to dwell in narration; to enlarge; with "on" or "upon". 

  • To use a dilator to widen (something, such as a vagina). 

  • To become wider or larger; to expand. 

shorten

verb
  • To make shorter; to abbreviate. 

  • To reduce or diminish in amount, quantity, or extent; to lessen. 

  • To take in the slack of (a rope). 

  • To reduce (sail) by taking it in. 

  • To become shorter. 

  • To make short or friable, as pastry, with butter, lard, etc. 

  • To make deficient (as to); to deprive (of). 

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