retrofit

/ɹɛtɹoʊfɪt/noun

noun

उन्नयन; पश्चात् जडान; नयाँ उपकरण जोड्ने कार्य

the act of adding a component or accessory to something that did not have it when it was manufactured

the court ordered a retrofit on all automobiles
अदालतले सबै सवारीमा उन्नयनको आदेश दियो।