Retrofitted

Part of speech: verb

Definitions

1. The modification of previously installed systems to incorporate advanced technology or upgrades enhances their operational capabilities
2. This action involves altering outdated equipment to integrate contemporary elements that boost efficiency
3. The process of updating older systems by incorporating modern technology aims to improve functionality and extend their useful life

Etymology: The past tense of "retrofit" is built from two parts that were both in use long before they met. "Retro-" means "back" or "backward," and "fit" in its older sense meant "to equip or supply," so to retrofit is to equip something after it was first built, adding parts it was never designed to carry. The verb came first, and the noun, which means the act of such an addition, was attested later and may have been formed either from the verb or directly from "retro-" plus the older noun "fit," meaning the act of fitting or the way parts agree with one another.

Synonyms: upgraded, modified, improved, enhanced, revised