prosecutor (n.)youdaoicibaDictYouDict[prosecutor 词源字典]
1590s, from Medieval Latin prosecutor, agent noun from prosequi (see prosecute). Specific legal sense of "one who brings a case in a court of law" is from 1620s; earlier such a person was a promoter (late 15c.). Related: Prosecutorial.[prosecutor etymology, prosecutor origin, 英语词源]