retrofit vs side

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. 

side

verb
  • To provide with, as a side or accompaniment. 

  • To clear, tidy or sort. 

  • To work (a timber or rib) to a certain thickness by trimming the sides. 

  • To furnish with a siding. 

  • To ally oneself, be in an alliance, usually with "with" or rarely "in with" 

  • To lean on one side. 

adj
  • Indirect; oblique; incidental. 

  • Far; distant. 

  • Being on the left or right, or toward the left or right; lateral. 

adv
  • Widely; wide; far. 

noun
  • A region in a specified position with respect to something. 

  • A man who prefers not to engage in anal sex during same-sex sexual activity. 

  • One surface of a sheet of paper (used instead of "page", which can mean one or both surfaces.) 

  • A sports team. 

  • One possible aspect of a concept, person, or thing. 

  • A flat surface of a three-dimensional object; a face. 

  • One set of competitors in a game. 

  • A recorded piece of music; a record, especially in jazz. 

  • A dish that accompanies the main course; a side dish. 

  • A group of morris dancers who perform together. 

  • A group having a particular allegiance in a conflict or competition. 

  • The batters faced in an inning by a particular pitcher. 

  • A line of descent traced through a particular parent, as distinguished from that traced through another. 

  • One half (left or right, top or bottom, front or back, etc.) of something or someone. 

  • A written monologue or part of a scene to be read by an actor at an audition. 

  • The portion of the human torso usually covered by the arms when they are not raised; the areas on the left and right between the belly or chest and the back. 

  • Sidespin; english 

  • A bounding straight edge of a two-dimensional shape. 

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