prosecutor/ˈpɹɑ.səˌkjuːˌtəɹ/EtymologyFirst use appears c. 1542, from Medieval Latin prosecutor, from prōsequor (English prosecute). By surface analysis, prosecute + -or.prosecutor means A prosecuting attorney. Lexicurio rates it Distinctive — a strength score of 65 out of 100.nounA prosecuting attorney.“Annie Jay was the Wisconsin government prosecutor in the trial of a man for forging his client's signature.”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.”