parcel vs retrofit

parcel

verb
  • To add a parcel or item to; to itemize. 

  • To divide and distribute by parts or portions; often with out or into. 

  • To wrap a strip around the end of a rope. 

  • To wrap something up into the form of a package. 

noun
  • An individual item appearing on an invoice or receipt (only in the phrase bill of parcels). 

  • A package wrapped for shipment. 

  • An individual consignment of cargo for shipment, regardless of size and form. 

  • A small amount of food that has been wrapped up, for example a pastry. 

  • A portion of anything taken separately; a fragment of a whole; a part. 

  • A division of land bought and sold as a unit. 

  • An indiscriminate or indefinite number, measure, or quantity; a collection; a group. 

retrofit

verb
  • 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 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 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 parcel and retrofit occurred in a corpus of books? (source: Google Ngram Viewer )