dubitation (n.)youdaoicibaDictYouDict[dubitation 词源字典]
mid-15c., from Middle French dubitation (13c.), from Latin dubitationem (nominative dubitatio) "uncertainty, doubt," noun of state from past participle stem of dubitare "to waver in opinion, be uncertain, doubt, question" (related to dubius "uncertain;" see dubious).[dubitation etymology, dubitation origin, 英语词源]