also up-grade, 1847, "upward slope," from up (adj.) + grade (n.). The meaning "upgraded version" is recorded from 1980.
upgrade (v.)
"increase to a higher grade or rank," 1904 (transitive); 1950 (intransitive), from up (adv.) + grade (v.). Related: Upgraded; upgrading.
upend
*uper
upfield
upfront
upgather
upgrade
upheaval
upheld
uphill
uphold
upholster
