# Legal Latin Maxims & Black's Law Dictionary Terms — Essential Latin Phrases for Law School & Bar Exam

> Essential legal Latin maxims and Black's Law Dictionary doctrines tested in law school and bar examinations: stare decisis, res judicata, habeas corpus, quantum meruit, statutory canons, and terminology.

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- **Level:** basic
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- **Total Cards:** 32

## Flashcards (32 Cards)

| # | Front (Term / Prompt) | Back (Definition / Answer) | Example | Multiple-Choice Options |
| :--- | :--- | :--- | :--- | :--- |
| 1 | What does 'In camera' mean in civil and criminal litigation? | Literally: 'In a chamber.' A judicial inspection, hearing, or review conducted in private in the judge's chambers or in a courtroom closed to the public and jury (e.g., in camera inspection of classified documents, trade secrets, or privileged attorney-client materials to determine admissibility). |  |  |
| 2 | What does the maxim 'Cui bono' mean and how is it used in criminal and civil litigation? | Literally: 'To whose benefit?' or 'Who stands to gain?' Used in criminal investigations, evidence, and argument to identify likely suspects by questioning which party derived the ultimate advantage, profit, or motive from the commission of the unlawful act or disputed transaction. |  |  |
| 3 | What does the historical common law rule of 'Caveat emptor' mean, and what is its modern status? | Literally: 'Let the buyer beware.' The traditional common law doctrine placing the risk of quality and defects upon the buyer of property or goods, absent fraud or express warranty. In modern law, virtually abolished for consumer goods by UCC implied warranties (§§ 2-314, 2-315) and for residential real estate by implied warranty of habitability and mandatory seller disclosure statutes. |  |  |
| 4 | What does the Latin legal maxim 'Stare decisis et non quieta movere' mean and how does it operate? | Literally: 'To stand by decisions and not disturb what is settled.' It is the foundation of judicial precedent in Common Law systems requiring courts to adhere to previously established legal principles from cases with substantially similar facts, encompassing Vertical Stare Decisis (inferior courts strictly bound by superior courts) and Horizontal Stare Decisis (courts following their own prior rulings unless compelling justification to overrule). |  |  |
| 5 | What does the Latin phrase 'Prima facie' denote in civil and criminal litigation? | Literally: 'At first face' or 'on its face.' Denotes evidence that is sufficient and legally adequate to establish a given fact or raise a presumption in favor of the claimant, which will prevail unless rebutted or contradicted by opposing evidence (e.g., establishing a prima facie case to survive a motion for directed verdict / JMOL). |  |  |
| 6 | What does the Latin phrase 'Mutatis mutandis' mean in legal drafting and treaty interpretation? | Literally: 'The necessary changes having been made.' Indicates that a previously stated rule, contractual provision, or statutory scheme is to be applied to a new situation with only those factual and nomenclature alterations necessary to accommodate the new context without altering substantive effect. |  |  |
| 7 | What is the distinction between 'Pro bono publico' and 'Pro se' representation? | • Pro bono publico ('For the public good'): Legal representation provided by a licensed attorney free of charge or at substantially reduced fees to indigent individuals, non-profits, or public causes (ABA Model Rule 6.1 recommends 50 hours annually). • Pro se ('For oneself'): An individual who represents themselves in a judicial proceeding without an attorney. |  |  |
| 8 | What does the doctrine of 'Collateral Estoppel' (Issue Preclusion) mean in Black's Law Dictionary? | An affirmative defense preventing the re-litigation of a specific issue of ultimate fact or law that was: (1) Actually litigated; (2) Decided by a court of competent jurisdiction; and (3) Essential to the final judgment in a prior proceeding between the parties or their privies. |  |  |
| 9 | What is the common law doctrine of 'Forum non conveniens'? | Literally: 'Inconvenient forum.' A discretionary procedural doctrine allowing a court with proper subject-matter and personal jurisdiction to dismiss a lawsuit when an adequate alternative forum exists (often in a foreign country) and private interest factors (witness convenience, evidence access) and public interest factors (local controversy, jury burden) make litigation in alternative forum far more convenient and just. |  |  |
| 10 | What does 'Bona fide purchaser' (BFP) signify in real property and commercial law? | Literally: 'In good faith.' A purchaser who: (1) Pays valuable consideration for an asset or property; (2) Acts in good faith; and (3) Takes without notice (actual, constructive/record, or inquiry) of any prior adverse claim, lien, or encumbrance. A BFP takes free of prior unrecorded equitable interests and claims. |  |  |
| 11 | What is the difference between an 'In re' proceeding and an 'Ex parte' proceeding? | • In re: 'In the matter of.' Designates a judicial proceeding involving a status, res, or property without formal adversarial opposing parties (e.g., bankruptcy, estate administration, guardianship, juvenile proceedings: In re Gault). • Ex parte: 'From or on one party.' A judicial proceeding, motion, or order granted on the application and for the benefit of one party alone without prior notice or opportunity to respond given to opposing party (e.g., emergency temporary restraining order). |  |  |
| 12 | What does 'Res judicata pro veritate accipitur' mean and what is its civil litigation function? | Literally: 'A thing adjudicated is accepted as the truth.' In civil procedure, Res Judicata (Claim Preclusion) bars parties and their privies from re-litigating a cause of action or claim arising out of the same transaction or occurrence once a court of competent jurisdiction has entered a final, valid judgment on the merits. |  |  |
| 13 | What does the Latin phrase 'Amicus curiae' signify in appellate litigation? | Literally: 'Friend of the court.' A person, entity, or governmental body who is not a formal party to an action but who files an appellate brief ('amicus brief') with leave of court or consent of parties, offering legal expertise, policy analysis, or perspectives relevant to the court's constitutional or statutory decision. |  |  |
| 14 | What does the Latin doctrine 'Ultra vires' mean in corporate and administrative law? | Literally: 'Beyond the powers.' Characterizes acts performed by a corporation, government agency, or public official that exceed the scope of powers, authority, or purpose granted by corporate charter, articles of incorporation, or authorizing statute (contrast with 'intra vires' — within powers). |  |  |
| 15 | What is the distinction between 'De jure' and 'De facto' in constitutional and municipal law? | • De jure: 'By right' or 'by law.' Describing a state of affairs, institution, or officer that exists in accordance with formal legal sanctions and constitutional mandate (e.g., de jure racial segregation created by statutes). • De facto: 'In fact' or 'as a matter of reality.' Describing a state of affairs or official power existing in reality, practice, or operational fact, regardless of whether officially authorized or legitimate by law (e.g., de facto segregation arising from residential housing patterns). |  |  |
| 16 | What does the statutory interpretation canon 'Ejusdem generis' mean? | Literally: 'Of the same kind or class.' Where general words follow specific words in an enumeration describing legal subjects, the general words are construed to embrace only objects or persons similar in nature and class to those specifically enumerated (e.g., 'automobiles, trucks, motorcycles, and other vehicles' excludes airplanes). |  |  |
| 17 | What does the phrase 'Sub judice' mean in trial practice and public commentary? | Literally: 'Under a judge.' Denotes a matter or case currently under judicial consideration and awaiting determination by a court. In common law jurisdictions (notably the UK), sub judice rules restrict extrajudicial public commentary or media reporting to prevent prejudice to pending trials. |  |  |
| 18 | What does the Latin phrase 'Sine qua non' mean in tort and criminal causation? | Literally: 'Without which not.' The indispensable, essential condition; the classical 'But-For' test of actual causation (cause-in-fact). Plaintiff must establish that the injury would not have occurred without (but for) defendant's tortious conduct (causa sine qua non). |  |  |
| 19 | What does the Latin term 'Certiorari' mean and what is a Writ of Certiorari? | Literally: 'To be made more certain' or 'to be informed.' A discretionary order issued by an appellate court (such as the Supreme Court of the United States) directing an inferior court to transmit the certified record of a case for appellate review under the Rule of Four (where 4 of 9 Justices agree to grant review). |  |  |
| 20 | What is an 'Ex post facto' law and why is it unconstitutional? | Literally: 'From a thing done after.' A retroactive criminal law that: (1) Criminalizes conduct that was lawful when committed; (2) Increases the severity or degree of a crime retroactively; (3) Inflicts greater punishment than permitted when crime occurred; or (4) Deprives a defendant of a defense available when act was committed. Strictly prohibited by Article I, §§ 9 & 10 of the U.S. Constitution. |  |  |
| 21 | What is a 'Subpoena duces tecum' and how does it differ from a 'Subpoena ad testificandum'? | • Subpoena ad testificandum: A formal court order commanding a named witness to appear in person and testify orally under penalty of contempt. • Subpoena duces tecum: Literally 'bring with you under penalty.' A judicial command ordering a witness or custodian of records to appear and produce designated physical documents, electronically stored information (ESI), records, or physical evidence. |  |  |
| 22 | What does the common law doctrine of 'Respondeat superior' mandate? | Literally: 'Let the superior answer.' The fundamental tort doctrine of vicarious liability holding an employer or principal legally liable for the tortious acts committed by an employee or agent within the course and scope of employment, even if the employer was not individually negligent in hiring or supervision. |  |  |
| 23 | What is the historical meaning and constitutional function of the Great Writ 'Habeas corpus ad subjiciendum'? | Literally: 'You shall have the body to submit to.' A prerogative legal writ issued by a court directing an executive custodian or jailer holding a prisoner to produce the prisoner in court to test the legal validity of the detention. Known as the 'Great Writ of Liberty,' protected under the U.S. Constitution's Suspension Clause (Art. I, § 9, cl. 2). |  |  |
| 24 | What does the statutory construction canon 'Noscitur a sociis' mean? | Literally: 'It is known by its companions.' A canon of statutory interpretation providing that an ambiguous or doubtful word or phrase in a statute is given meaning by association with the surrounding words and phrases with which it is coupled in the text. |  |  |
| 25 | What does 'Non compos mentis' mean in contract and testamentary capacity? | Literally: 'Not of sound mind.' Legal designation for an individual lacking mental capacity to understand the nature, purpose, or consequences of executing a contract, deed, or will. Contracts entered into by an adjudicated incompetent are void; those by unadjudicated persons lacking capacity are voidable. |  |  |
| 26 | What is the legal remedy of 'Quantum meruit' in contracts and restitution? | Literally: 'As much as he has deserved.' An equitable remedy in quasi-contract / unjust enrichment granting restitution of the reasonable fair market value of services rendered or goods supplied, preventing a defendant from being unjustly enriched when no enforceable contract exists or when contract is unenforceable under the Statute of Frauds. |  |  |
| 27 | In substantive criminal law, how do 'Mens rea' and 'Actus reus' interact? | • Actus reus: The objective 'guilty act' or physical, voluntary bodily movement (or failure to act where legal duty exists) constituting the crime. • Mens rea: The subjective 'guilty mind' or mental culpability required (e.g., intent, knowledge, recklessness, negligence). To establish criminal culpability, both elements must Concur in time; mens rea must actuate actus reus. |  |  |
| 28 | What is a 'Lis pendens' notice and what is its legal effect in property litigation? | Literally: 'A pending lawsuit.' A recorded formal notice in the public land records giving constructive notice to all prospective purchasers and creditors that title to, or an interest in, a specific parcel of real property is currently subject to pending litigation. Anyone acquiring an interest takes subject to judgment. |  |  |
| 29 | What is a plea of 'Nolo contendere' and what is its evidentiary advantage over a guilty plea? | Literally: 'I do not wish to contend.' A defendant's plea in a criminal prosecution that has the same immediate effect as a conviction/guilty plea for sentencing, but CANNOT be introduced as an admission of guilt in any subsequent civil litigation arising out of the same underlying conduct (FRE 410). |  |  |
| 30 | What does the Latin phrase 'Inter alia' mean in legal drafting and judicial opinions? | Literally: 'Among other things.' Used in legal pleadings, briefs, contracts, and judicial opinions when reciting a partial list of facts, statutory provisions, or grounds to signify that other non-enumerated items or matters also exist and are not excluded. |  |  |
| 31 | What is the distinction between 'Ipso facto' and 'Per se' in legal analysis? | • Ipso facto: 'By the fact itself.' An inevitable result arising automatically by the operation of the fact or law itself without need for further action (e.g., ipso facto bankruptcy clauses). • Per se: 'In and of itself' or 'as such.' An act that is inherently illegal or actionable as a matter of law without requiring extrinsic proof of harm, malice, or reasonableness (e.g., antitrust per se price fixing; defamation per se). |  |  |
| 32 | What does the canon of statutory construction 'Expressio unius est exclusio alterius' mean? | Literally: 'The expression of one thing is the exclusion of the other.' A rule of statutory interpretation establishing that the explicit statutory mention of one or more specific things implies the legislative intent to exclude other similar things not mentioned (e.g., if a statute lists cats and dogs, it presumptively excludes horses). |  |  |

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