vim (n.)youdaoicibaDictYouDict[vim 词源字典]
1843, usually said to be from Latin vim, accusative of vis "strength, force, power, vigor, energy," from PIE root *weie- "to go after, pursue with vigor or desire," with noun derivatives meaning "force, desire" (see venison). But based on the early uses OED suggests the possibility that the word is of "a purely inventive or interjectional origin."[vim etymology, vim origin, 英语词源]