Explanation:

- Option 1: English

- "Res judicata" is not an English term. It's used in English law but originates from another language.

- Option 2: French

- Although French has significantly influenced legal terminology, "Res judicata" is not derived from French.

- Option 3: Latin

- "Res judicata" is indeed a Latin term. It means "a matter judged" and refers to a case that has been finally decided by the courts, precluding re-litigation of the same issue.

- Option 4: None of the Above

- This option is incorrect because "Res judicata" is definitively a Latin term.