13.1 Common Latin Legal Terms
Key Takeaways
- Latin terms are best learned by legal function and context rather than literal word-for-word translation alone.
- Terms such as habeas corpus, pro se, prima facie, res judicata, and stare decisis name distinct doctrines or procedural statuses.
- Ex parte, in camera, and in limine describe different settings or motions and are not interchangeable.
- The reporter verifies pronunciation and spelling but does not explain a doctrine's legal application to participants.
Participant and representation terms
Pro se means appearing on one's own behalf without a lawyer. Pro hac vice refers to a lawyer admitted for a particular matter despite not being regularly admitted in that jurisdiction. Amicus curiae, “friend of the court,” is a nonparty permitted to provide information or argument. Guardian ad litem is a person appointed to protect an interest in a case; exact duties depend on the order and law.
These labels affect appearance notes. Do not call a pro se party “counsel,” and do not list an amicus as a party unless the caption or court does so.
Procedure and setting
- Ex parte: involving communication or relief sought without all parties present, subject to strict legal limits.
- In camera: privately before the judge, often for protected review; it can still be on the record.
- In limine: at the threshold; a motion in limine seeks an advance evidentiary ruling.
- Voir dire: “to speak the truth”; commonly jury selection and sometimes preliminary examination of a witness or expert.
- Subpoena duces tecum: command to produce documents or tangible material.
- Nunc pro tunc: “now for then,” describing an order entered now with authorized earlier effect.
Do not infer record status from Latin. An in-camera session may be sealed and recorded; an ex parte application may be written; a motion in limine may be argued publicly.
Proof and decisions
Prima facie describes a showing sufficient on its face unless rebutted. Res judicata concerns claim preclusion after a final judgment; collateral estoppel is the related English-labeled concept of issue preclusion. Stare decisis is adherence to precedent. Ratio decidendi refers to the reasoning necessary to the decision; obiter dictum or dicta refers to nonessential commentary.
Mens rea is a required mental state for an offense; actus reus is the prohibited act. Corpus delicti refers to proof that a crime occurred, not literally the victim's body. These terms can be mis-transcribed when treated by everyday meaning.
Writs and remedies
Habeas corpus is a legal process challenging unlawful custody. Mandamus seeks an order compelling a public official or lower court to perform a legal duty in appropriate circumstances. Certiorari commonly refers to discretionary higher-court review, especially a petition asking the U.S. Supreme Court to review. Quo warranto challenges authority to hold an office or exercise a franchise.
The reporter needs recognition and spelling, not a full elements analysis. Capture the term and cited case accurately.
Responsibility and relationships
Respondeat superior concerns employer responsibility for employee conduct within applicable scope. Negligence per se can use violation of a statute as a basis for breach under governing law. Ultra vires means beyond legal power or authority. Bona fide means in good faith or genuine. Ad hoc means for a particular purpose.
Status and timing
De novo review begins anew or without deference as the applicable rule defines. Inter alia means among other things. Inter vivos refers to action during life, often a gift or trust. Testamentary is not Latin phrasing but concerns a will. Sua sponte means on the court's own initiative. Sub judice means under judicial consideration.
Pronunciation and annotation
Pronunciations vary. The written record prioritizes correct spelling and meaning in context. Use a timestamp when uncertain, consult the filed motion or official authority, and avoid substituting a similar-sounding term. Per curiam (by the court) and pro per (another label for self-representation in some usage) are not synonyms.
Study table
| Term | Functional cue |
|---|---|
| Pro se | Self-represented |
| Ex parte | Without all parties participating |
| In camera | Private judicial review |
| Prima facie | Sufficient initial showing |
| Res judicata | Claim preclusion |
| Stare decisis | Follow precedent |
| Habeas corpus | Challenge custody |
| Sua sponte | Court acts on its own initiative |
Exam method
Use the surrounding noun: motion in limine, petition for habeas corpus, appearance pro hac vice. Context separates similar phrases. The reporter may provide a spelling after checking an authoritative document but should not advise a participant whether the doctrine applies.
Exam application
Use legal context to separate Latin terms that sound formal but perform different jobs. An attorney appears pro hac vice; a party appears pro se; a judge reviews material in camera; counsel files a motion in limine; an appellate court may review de novo. When audio is unclear, mark the timestamp and verify the filed document or authoritative source. Do not replace one term with another merely because both appear in the same hearing. Accurate spelling preserves meaning; explaining whether the doctrine applies remains legal work.
Which Latin term means that a party is appearing without a lawyer?