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Have you ever been deep into old court records, probate files, land documents, or early newspaper notices and wondered, “What on earth does this legal term mean?” Many expressions that were once common in legal proceedings have disappeared from modern usage, leaving genealogists puzzled when they encounter them. This list provides clear, concise definitions of old and obsolete legal terminology so you can confidently interpret your ancestors’ court cases, disputes, property transactions, and legal notices.
| Old Term | Meaning / Short Definition |
| Abate | Reduce or nullify a legal claim |
| Abeyance | Temporary suspension of a title or claim |
| Accessory Before the Fact | Helped plan a crime but wasn’t present |
| Actionable | Grounds sufficient to bring a lawsuit |
| Affray | Public fight disturbing the peace |
| Aforethought (Malice Aforethought) | Premeditation required for murder |
| Ages of Consent / Majority / Discretion | Legal age thresholds |
| Aide and Abettor | One who assists a criminal act |
| Alderman’s Court | Early municipal court |
| Alias Dictus (Alias) | Person known by another name |
| Alimony Pendente Lite | Temporary spousal support during divorce |
| Amotion | Removal from office |
| Animus | Intent or motive |
| Assize / Assizes | Traveling court sessions held by judges |
| Attaint | Conviction that stripped civil rights |
| Bailiwick | Jurisdiction of a bailiff |
| Bastardy Bond | Bond guaranteeing support for illegitimate child |
| Battery | Physical attack |
| Beneficiary Bequeathed | Person receiving property in a will |
| Benefit of Clergy | Medieval privilege reducing punishment |
| Bill of Costs | List of legal fees |
| Bill of Indictment | Formal criminal charge |
| Bill of Particulars | Detailed statement of claim |
| Blackmail | Extortion by threats |
| Bond for Peace | Promise to maintain good behavior |
| Bound Over | Required to appear in court under bond |
| Breach of Promise | Lawsuit for breaking engagement to marry |
| Breachy | Repeated offender of minor laws (regional) |
| Calumny | False accusation |
| Capias | Writ ordering arrest |
| Certiorari | Higher court review of lower court case |
| Cestui Que Trust | Beneficiary of a trust |
| Cestui Que Vie | Person whose life determines duration of an estate |
| Chancery Court | Equity court for estates, guardianship, disputes |
| Chattel | Personal property |
| Claim Jumper | One who illegally seizes a claim |
| Clerk of the Peace | Officer maintaining local legal records |
| Cognovit | Written acknowledgment of debt |
| Color of Law | Pretended authority |
| Common Scold | Person accused of habitual public disturbance |
| Old Term | Meaning / Short Definition |
| Compensation Roll | Early list of fines/penalties |
| Compurgation | Oath-taking with character witnesses |
| Conservator | Person managing affairs of another |
| Constable’s Sale | Forced sale of property for debts |
| Contumacy | Refusal to obey court orders |
| Coram Nobis | Petition to correct fundamental error |
| Coroner’s Inquest | Inquiry into cause of death |
| Court of Oyer and Terminer | Court empowered to try serious crimes |
| Covenant | Formal written promise |
| Curtesy | Husband’s right to deceased wife’s land |
| Damages, Exemplary | Punitive damages |
| Day Book / Docket | Court schedule of cases |
| Defalcation | Embezzlement or misappropriation |
| Defeasance | Document voiding another document |
| Demesne | Land held directly (often by lord) |
| Demurrer | Objection that complaint lacks legal basis |
| Deodand | Object causing death, forfeited to Crown |
| Detinue | Wrongful detention of property |
| Dies Non Juridicus | Non-court day |
| Disseisin | Wrongful dispossession of land |
| Distress | Seizing property to enforce payment |
| Dower | Widow’s legal share of estate |
| Ejectment | Removal from land |
| Elisor | Person appointed when sheriff is disqualified |
| En Plea | In open court |
| Escheat | Property reverting to state when no heirs |
| Estreat | Recorded forfeited bond for enforcement |
| Ex Parte | Proceeding by one party only |
| Executor / Executrix | Person administering a will |
| Fealty | Loyalty oath in early land systems |
| Fee Tail | Estate inherited only by direct descendants |
| Felonious Assault | Serious assault suggesting intent to kill |
| Feme Covert | Married woman under husband’s authority |
| Feme Sole | Unmarried woman with full legal rights |
| Fieri Facias | Writ ordering seizure of goods |
| Foreclosure of Equity | Ending right to redeem mortgaged property |
| Gaol / Gaoler | Jail / jailer |
| Garnishee | Third party holding debtor’s funds |
| Good Behavior Bond | Bond requiring lawful conduct |
| Habeas Corpus | Order to bring detainee to court |
| Heinous Offense | Very serious crime |
| Holographic Will | Handwritten will |
| Hue | Ancient term for cry of pursuit |
| Hue and Cry | Public pursuit of a criminal |
| Old Term | Meaning / Short Definition |
| Ignominious Punishment | Punishment involving public shame |
| Impanel | Enroll jurors for service |
| Imprimis | “First of all,” in wills/inventories |
| Impunity | Protection from punishment |
| Indenture | Contract or deed with multiple parties |
| Infant | Legal minor (not necessarily young child) |
| Informations | Charges filed without grand jury |
| Injunction | Court order to stop an action |
| Inquest of Lunacy | Inquiry into mental competence |
| Jeofail | Correction of pleading errors |
| Laches | Loss of rights due to delay |
| Latitat | Writ for arrest of person evading summons |
| Leet / Court Leet | Local manorial court |
| Letters of Administration | Authority to settle intestate estate |
| Levy | Seizure of property to satisfy debt |
| Libel | Written defamation |
| Mainprise | Release from custody with sureties |
| Manslaughter | Killing without malice aforethought |
| Mayhem | Maiming or disabling another |
| Mesne Profits | Income from land wrongfully occupied |
| Mistrial | Trial declared invalid |
| Mittent | One who sends or delivers legal papers |
| Mittimus | Order committing someone to jail |
| Mulct | Fine or penalty |
| Nolle Prosequi | Prosecution drops charges |
| Nudum Pactum | Agreement without consideration |
| Outlawry | Declaring person outside legal protection |
| Parens Patriae | State as guardian of vulnerable persons |
| Per Stirpes | Inheritance by family branches |
| Pettifogger | Dishonest, low-level lawyer |
| Plenary | Full or complete authority |
| Portreeve | Old municipal/judicial officer |
| Praecipe | Order for clerk to prepare writ |
| Presentment | Jury reporting observed offense |
| Probate | Legal validation of a will |
| Quash | Nullify a legal action |
| Quid Pro Quo | Something exchanged for something |
| Recognizance | Bond promising court appearance |
| Replevin | Return of wrongfully taken goods |
| Res Gestae | Surrounding circumstances of an act |
| Retinue | Sheriff’s accompanying officers |
| Old Term | Meaning / Short Definition |
| Reversioner | Person inheriting after estate ends |
| Scire Facias | Writ to revive judgment |
| Sedition | Inciting rebellion |
| Seisin | Legal possession of land |
| Slander | Spoken defamation |
| Sovereignty of the Peace | Broad authority to maintain order |
| Statute Staple | Early commercial loan security |
| Subornation | Persuading someone to perjure |
| Sui Juris | Legally competent |
| Surety | One guaranteeing another’s obligation |
| Testator / Testatrix | Person making a will |
| Toll the Statute | Pause the running of a limitations period |
| Tortfeasor | Person committing a civil wrong |
| Trespass on the Case | Civil claim for harm |
| Usufruct | Use of property without owning it |
| Vacate | Cancel a judgment |
| Venire Facias | Order summoning jurors |
| Verdict | Jury’s decision |
| Vexatious Litigation | Harassing lawsuit |
| View of Frankpledge | Annual manorial court review |
| Waif & Stray | Property abandoned or unclaimed |
| Warrant of Commitment | Order sending person to jail |
| Writ of Capias Ad Respondendum | Arrest to compel court response |
| Writ of Capias Ad Satisfaciendum | Arrest until debt is satisfied |
| Writ of Certiorari | Appellate review order |
| Writ of Error | Review of lower court decision |
| Writ of Fi. Fa. (Fieri Facias) | Order to seize property to satisfy judgment |
| Writ of Habeas | Command to produce a detained person |
| Writ of Mandamus | Order compelling official action |
| Writ of Partition | Division of jointly owned property |
| Writ of Repleader | Order to redo pleadings |
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