juror (n.)youdaoicibaDictYouDict[juror 词源字典]
c. 1300 (attested from late 12c. in Anglo-Latin), from Anglo-French jurour (late 13c.; Old French jureor), from Latin iuratorem (nominative iurator) "swearer," agent noun from iurare "to swear" (see jury (n.)).[juror etymology, juror origin, 英语词源]