retrieve vs retrofit

retrieve

verb
  • To remedy or rectify something. 

  • To remember or recall something. 

  • To regain or get back something. 

  • To fetch and bring in game. 

  • To salvage something 

  • To make a difficult but successful return of the ball. 

  • To fetch and bring in game systematically. 

  • To fetch or carry back something, especially (computing) a file or data record. 

  • To rescue (a creature). 

  • To fetch or carry back systematically, notably as a game. 

noun
  • The return of a difficult ball 

  • A retrieval 

retrofit

verb
  • To give new characteristics or make alterations (to someone or something) to suit them to changed circumstances. 

  • To supply (a device, structure, etc.) with new components or parts that were not previously available or installed; to modernize. 

  • Synonym of backport (“to retroactively supply a fix or feature to a previous version of a software product at the same time or after supplying it to the current version.”) 

  • To supply a device, structure, etc., with new components or parts that were not previously available or installed. 

  • To add or substitute (new components or parts) that were not previously available for or installed in a device, structure, etc. 

noun
  • An act of supplying a device, structure, etc., with new components or parts that were not previously available or installed; a retrofitting. 

  • A change made to a device, structure, etc., by introducing components or parts that were not previously available or installed. 

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