retrofit
verb
[ ˈrɛtrəʊfɪt ]
• add (a component or accessory) to something that did not have it when manufactured.
• "motorists who retrofit catalysts to older cars"
retrofit
noun
• an act of retrofitting a component or accessory.
• "uninsulated and oddly designed dream houses that are badly in need of a retrofit"
Origin:
1950s: blend of retroactive and refit.
