evagation (n.)youdaoicibaDictYouDict[evagation 词源字典]
"action of wandering," 1650s, from French évagation, from Latin evagationem (nominative evagatio), noun of action from past participle stem of evagari, from assimilated form of ex- (see ex-) + vagari, from vagus "roving, wandering" (see vague).[evagation etymology, evagation origin, 英语词源]