rescript vs upgrade

rescript

verb
  • To script again or anew. 

noun
  • A rewriting, a document copied or written again. 

  • A duplicate copy of a legal document. 

  • A clarification of a point of law by a monarch issued upon formal consultation by a lower magistrate. 

  • An ad hoc reply of a pope to some specific question of canon law or morality, without precedential force, sometimes (improper) inclusive of decretals which serve as precedents in canon law. 

upgrade

verb
  • To replace with something better. 

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

  • 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. 

noun
  • An upward grade or slope. 

  • An improvement 

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

adv
  • Up a slope or grade. 

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