ascend
v.
late 14c., from Latin ascendere "to climb up, mount, ascend," figuratively "to rise, reach," from ad- "to" (see ad-) + scandere "to climb" (see scan, v.). Also in 15c. used with a sense "to mount (a female) for copulation." Related: Ascended; ascending. An Old English word for it was stigan.
〔李〕[a-(ad-);scend] v.攀高； 追溯 ←scand,scans,scend,scens (L scandere, scansum)=to climb 攀
〔蒋〕[a-=ad-表示to，scend爬;’爬上”] 上升;登高，攀登