Definition
The legal dissolution or suspension of a marriage by a court or other authority with jurisdiction over domestic relations. Two distinct forms have historically been recognized:
1. Divorce a vinculo matrimonii ("from the bond of matrimony"): A full dissolution of the marriage, terminating the legal relationship entirely and, in modern practice, restoring the parties to the status of unmarried persons. This is what is meant today when "divorce" is used without qualification.
2. Divorce a mensa et thoro ("from bed and board"): A partial separation that suspends the marital cohabitation obligations without dissolving the underlying marriage. The parties remain legally married but are relieved of duties of cohabitation. This form survives in some U.S. jurisdictions under the label "legal separation" or "limited divorce," and in ecclesiastical law contexts.
In contemporary American law, divorce is almost always a judicial proceeding concluding in a decree that dissolves the marriage and adjudicates collateral issues: division of marital property, spousal support, child custody, and child support. The grounds, procedures, and consequences vary substantially by state.
---
Common Language
Modern common usage (Wiktionary): To legally dissolve a marriage between two people; to end one's own marriage to a person in this way; also used informally to mean separating something that was connected.
Historical common usage (Webster's 1913): A legal dissolution of the marriage contract by a court or competent authority; distinguished from mere separation from bed and board.
The gap between common and legal meaning is modest but matters for research: in ordinary speech, "divorce" refers only to complete termination of a marriage. In legal sources — particularly those predating the 20th century — "divorce" encompasses both the full dissolution (a vinculo) and the partial suspension (a mensa et thoro). A researcher reading an older case or treatise that uses "divorce" without a Latin qualifier should not assume it means full dissolution.
---
Common Confusion
DIVORCE vs. ANNULMENT: A divorce dissolves a valid marriage; an annulment declares that a valid marriage never legally existed. The distinction matters significantly for property rights, inheritance, and — in older sources — legitimacy of children born during the union.
DIVORCE A MENSA ET THORO vs. LEGAL SEPARATION: These are functionally equivalent in most modern jurisdictions, but the Latin form appears in historical ecclesiastical and equity court records. A researcher encountering the Latin phrase in pre-20th-century sources should understand it as a predecessor to, not the same procedural creature as, a contemporary legal separation order.
DIVORCE vs. DISSOLUTION: Some states (California prominently) have replaced the term "divorce" with "dissolution of marriage" in their statutes and court forms. The terms are legally equivalent in those jurisdictions, but index searching in those states' legal databases requires attention to which term the source uses.
---
Recognized Forms
/SUBTYPES
Divorce a vinculo matrimonii: Full and final dissolution of the marriage bond.
Divorce a mensa et thoro: Separation from bed and board; marriage continues legally.
No-fault divorce: Dissolution granted without proving marital misconduct, typically on grounds of irreconcilable differences or irretrievable breakdown. Now the dominant form in all U.S. states.
Fault-based divorce: Dissolution premised on a specific marital wrong by one party (adultery, cruelty, desertion, etc.). Still recognized in many states but rarely the practical mechanism used.
Default divorce: Divorce granted when one spouse fails to appear or respond after proper service; see family_48.
Collaborative divorce / mediated divorce: Dissolution reached through structured negotiation rather than contested litigation; see family_46.
---
Why It Matters in Research
Historical sources use the a vinculo / a mensa distinction as a controlling structural axis. Failing to track which form a historical case or statute addresses will produce misreadings. Before 1857 in England, full divorce (a vinculo) required a private Act of Parliament; ecclesiastical courts handled only a mensa proceedings. American colonial and early republic practice varied considerably by colony and state, with some jurisdictions granting divorce only by legislative act well into the 19th century. Cases from this period may look like judicial proceedings but originated as legislative petitions.
The grounds for divorce in historical American law are a research minefield. Fault-based grounds — adultery, cruelty, desertion, habitual drunkenness, impotency — were enumerated in state statutes and litigated with procedural defenses including recrimination, condonation, connivance, and collusion. Bouvier's entries flag collusion specifically: courts refused divorce where spouses fabricated or staged grounds. These defenses appear frequently in 19th- and early-20th-century reported decisions and are largely absent from modern practice.
The shift to no-fault divorce, which accelerated sharply after California's 1969 Family Law Act, fundamentally altered the legal landscape. Corpus research spanning pre- and post-1970 sources will encounter two largely incompatible procedural and doctrinal frameworks under the same term. Property division rules, alimony standards, and custody presumptions all underwent simultaneous transformation. Be cautious about treating doctrine from pre-1970 secondary sources as operative law without verifying its current status.
Financial disclosure and discovery in divorce cases — the subject of family_45 — is a modern development tied to equitable distribution and community property regimes. Historical sources will not address this dimension.
Interstate recognition of divorce decrees has generated substantial constitutional litigation under the Full Faith and Credit Clause. Bouvier's references the jurisdictional limits of federal review of state court recognition of foreign divorce decrees, touching issues that remain live in transnational divorce contexts today.
---
Historical Dictionary Support
The core historical dictionaries converge on the a vinculo / a mensa structural division. Black's (1st Ed.), Bouvier's, Anderson's, and Burrill's all organize their entries around this axis, and the Latin terminology is used consistently and without contradiction across the shelf.
Burrill adds etymological grounding (divortere, to turn away or separate) that illuminates why early courts treated the concept as inherently about physical and legal separation rather than termination alone.
Anderson's is useful for the English jurisdictional history: he notes that prior to 1857, divorce in England belonged to ecclesiastical courts and Parliament, a point necessary for understanding why pre-1857 English cases cited in American opinions almost always involve only a mensa proceedings rather than full dissolution.
Bouvier's entries are the most extensive and include procedural and defensive doctrine — recrimination, condonation, collusion — that other shelf dictionaries treat lightly or omit. His coverage of collusion is particularly detailed and reflects the live litigation concerns of the 19th century. The shelf sources are notably silent on no-fault divorce, property division frameworks, and the constitutional dimensions of interstate recognition beyond Bouvier's brief jurisdictional reference. Modern research cannot rely on these sources for any aspect of post-1970 divorce law.
One entry in the source material attributed to Bouvier's ("One of several defendants to a chancery or admiralty cause") is plainly a mis-keyed entry for a different term and should be disregarded.
---
Jurisdictional Note
All U.S. states now permit no-fault divorce, but grounds, waiting periods, residency requirements, and property division frameworks vary significantly. A handful of states retain fault as a factor in equitable distribution or alimony calculations even when fault is not required to obtain the decree. Transnational divorces — where one spouse is domiciled abroad — raise distinct jurisdictional and recognition questions not resolved by domestic doctrine alone.
---
Encyclopedia Cross-Reference
The Law Mind Family Law Encyclopedia:
— Divorce: Default Divorce (family_48)
— Divorce: Mediation, Collaborative Divorce, and ADR (family_46)
— Divorce: Discovery in Divorce Cases / Financial Disclosure (family_45)
---