[mass noun](Law, historical)acquittal from a charge or accusation obtained by statements of innocence given by witnesses under oath (律 史)宣誓断讼法,宣誓免责(根据证人宣誓宣告被告无罪)
compurgatory [kəmˈpəːgət(ə)ri] adjective 语源
mid 17th cent.: from medieval Latin compurgatio(n-), from Latin compurgare, from com- (expressing intensive force) + purgare 'purify' (from purus 'pure')