upgrade
UK: ʌpˈɡreɪd | US: ˈʌpˌɡreɪd
vt. to improve or enhance the quality, value, or functionality of something
n. an improved or enhanced version of something
vi. to move to a higher level or standard
The word "upgrade" combines "up" (Old English "ūp," meaning "upward") and "grade" (Latin "gradus," meaning "step" or "level"). It originally referred to ascending a slope or step, later evolving metaphorically to denote improvement or advancement in quality or status. The term gained prominence in the 20th century with technological advancements, where "upgrading" became synonymous with enhancing systems or software.
The company plans to upgrade its software next month.
She received an upgrade to first class on her flight.
You can upgrade your phone by installing the latest OS.
The hotel offered us a free room upgrade.
Regular maintenance helps upgrade the performance of your car.