grow vs shorten

grow

verb
  • To assume a condition or quality over time. 

  • To appear or sprout. 

  • To become larger, to increase in magnitude. 

  • To undergo growth; to be present (somewhere) 

  • To develop, to mature. 

  • To cause or allow something to become bigger, especially to cultivate plants. 

shorten

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

  • 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 shorter; to abbreviate. 

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

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