upgrade
n.
also up-grade, 1847, "upward slope," from up, adj. + grade, n.. The meaning "upgraded version" is recorded from 1980.
v.
"increase to a higher grade or rank," 1904 (transitive); 1950 (intransitive), from up, adv. + grade, v.. Related: Upgraded; upgrading.
〔蒋〕[up上，grad步，级] 上升，升级，提升，上坡