compurgationyoudaoicibaDictYouDict[compurgation 词源字典]
"Acquittal from a charge or accusation obtained by statements of innocence given by witnesses under oath", Mid 17th century: from medieval Latin compurgatio(n-), from Latin compurgare, from com- (expressing intensive force) + purgare 'purify' (from purus 'pure').[compurgation etymology, compurgation origin, 英语词源]