prosecutor

noun

Etymology: First use appears c. 1542, from Medieval Latin prosecutor, from prōsequor (English prosecute). By surface analysis, prosecute + -or.

1. A prosecuting attorney.

   “Annie Jay was the Wisconsin government prosecutor in the trial of a man for forging his client's signature.”

   “The evidence disclosed that the three prisoners were in a public-house together with the prosecutor, Abraham Rhodes, and that in concert with the other two prisoners, the prisoner John Dewhirst placed a pencase on the table in the room where they were assembled, and left the room to get writing-paper.”

2. A person, as a complainant, victim, or chief witness, who institutes prosecution in a criminal proceeding.

   “The prosecutor got the witness to admit he was lying.”