backfit

/ˈbækˌfɪt/
verb
  1. To install or add a new part, feature, or system to something that was originally built without it.
    • We need to backfit the building with solar panels to reduce energy costs.
    • The company decided to backfit the old factory with modern safety equipment.
    • They backfit the vintage car with a new engine and brakes.
Antonyms
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