remove vs upgrade

remove

noun
  • A step or gradation (as in the phrase "at one remove") 

  • Distance in time or space; interval. 

  • (at some public schools) A division of the school, especially the form prior to last 

  • Emotional distance or indifference. 

  • The act of resetting a horse's shoe. 

  • The act of removing something. 

  • A dish served to replace an earlier one during a meal; a part of a new course. 

verb
  • To discard, set aside, especially something abstract (a thought, feeling, etc.). 

  • To murder. 

  • To dismiss or discharge from office. 

  • To move something or someone from one place to another, especially to take away. 

  • To dismiss a batsman. 

  • To delete. 

upgrade

noun
  • An improvement 

  • An upward grade or slope. 

  • An improved component or replacement item, usually applied to technology 

adv
  • Up a slope or grade. 

verb
  • To improve, usually applied to technology, generally by complete replacement of one or more components 

  • To replace with something better. 

  • To improve the equipment or furnishings of or services rendered to 

  • To replace a program with a later version of itself, a version having a higher version number or marketed under a more recent product name. 

  • To improve in condition or status. 

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