Definition
To deprive a person or entity of a right, title, estate, or interest previously held. Devest (the older spelling) and divest (the modern standard) are variants of the same term. In property law, to divest is to strip away ownership or a possessory interest — the mirror image of vesting, which is the act of conferring or perfecting such an interest. The term operates across several legal contexts:
1. Property and estates: Title or an estate interest is divested when a condition subsequent occurs, when a court orders transfer, or when operation of law extinguishes the holder's claim.
2. Corporate and business law: A company divests when it disposes of a subsidiary, division, or asset — typically through sale, spinoff, or liquidation.
3. Constitutional and administrative law: A legislature or agency may be said to divest a party of a vested right when regulatory action eliminates an entitlement previously secured by law.
4. Jurisdictional use: A court is divested of jurisdiction when an appeal is filed or when another tribunal acquires exclusive authority over the matter.
Common Language
Modern common usage (Wiktionary): To deprive of possession; in everyday use, often refers to selling off assets or shedding an investment, as in "the company divested its retail division."
Historical common usage (Webster's 1913): To strip or deprive of anything; to undress or disrobe; to free or clear from.
The everyday financial sense — selling assets or unwinding investments — is narrower and more voluntary than the legal meaning. In law, divestiture may be compelled (by court order, regulatory mandate, or operation of law), and the term carries specific doctrinal weight about when and how a legal interest is extinguished, not merely transferred.
Common Confusion
DEVEST vs. DIVEST: These are the same word in different historical dress. "Devest" appears consistently in older legal writing — Bouvier uses it, as does much of pre-twentieth-century case law and treatise literature. By the mid-twentieth century, "divest" had become the dominant legal spelling. Researchers using historical sources should treat both spellings as identical in meaning and not read significance into the choice of form.
DIVEST vs. VEST: These are true opposites. Vesting perfects or confers an interest; divesting extinguishes or removes it. In trust and pension law especially, the distinction between a vested and a divested benefit carries precise legal consequences. Do not conflate divesting with a mere encumbrance or limitation on title — divestiture ends the interest.
Why It Matters in Research
The spelling shift from "devest" to "divest" is the principal research trap here. Early American and English cases — including much of the nineteenth-century federal and state reporter literature — use "devest" exclusively. Full-text database searches limited to "divest" will miss this body of authority. When researching vesting and divestiture of title in historical sources, run both spellings.
The term also bridges several doctrinal areas that are catalogued separately in the Law Mind corpus: property (conditions subsequent, executory interests, defeasible fees), corporate law (divestitures, antitrust-compelled asset sales), pension and benefits law (vesting schedules), and civil procedure (divestiture of jurisdiction). A researcher who locates the term in one doctrinal context should not assume the surrounding doctrine carries over to another.
In constitutional takings research, the concept of divesting a vested right intersects with Due Process and the Takings Clause. The question of whether a regulatory action has divested a party of a protected property interest is analytically prior to the takings analysis itself — courts must first determine whether the interest was vested before asking whether the government must compensate for its removal.
In procedural research, the rule that filing a notice of appeal divests the trial court of jurisdiction over the judgment is a specific and frequently litigated application of this term. The mechanics of that divestiture vary by jurisdiction and by the nature of the post-judgment motion involved.
Historical Dictionary Support
Bouvier's entry is characteristically compact: "To deprive, to take away; opposite to invest, which is to deliver possession of anything to another," citing Wharton. The structural framing — devest as the antonym of invest — is the most useful analytical handle the historical dictionaries offer, and it remains accurate. The invest/divest pairing maps directly onto the vest/divest pairing in modern usage.
What the historical dictionaries do not capture is the doctrinal elaboration the term has accumulated, particularly in corporate law and constitutional property doctrine. Bouvier writes from a property-and-estates frame; modern researchers will encounter the term in regulatory, antitrust, and procedural contexts that have no equivalent in nineteenth-century legal writing.
Jurisdictional Note
The jurisdictional significance of divestiture of trial court jurisdiction upon filing a notice of appeal varies: some jurisdictions recognize exceptions for collateral matters and post-judgment motions that do not implicate the judgment itself. Researchers should not assume a uniform rule across federal circuits or state systems.