upshift

[ uhp-shift ]
/ ˈʌpˌʃɪft /

verb (used without object)

to shift an automotive transmission or vehicle into a higher gear.

verb (used with object)

to shift (an automotive transmission or vehicle) into a higher gear.

noun

an act or instance of upshifting.

Origin of upshift

First recorded in 1950–55; up- + shift