Definition
Stellionate is a term drawn from civil and Scots law denoting fraudulent conduct in the making of contracts, most commonly the act of selling, assigning, or encumbering property that the seller does not own, or that has already been sold or mortgaged to another. The term functions as a catch-all for contractual frauds that did not fall under a more specific legal category.
Two distinct applications appear across legal traditions:
1. Civil law (Roman and civilian tradition): A broad class of fraudulent contract-making. In its most specific Roman law form, stellionate was committed by a mortgagor who created a second mortgage without disclosing the first — unless the property's value was sufficient to cover all charges. Bouvier notes that the word was understood to cover all species of fraud in contract-making, with the lizard stellio offered as the etymological emblem of cunning concealment.
2. Scots law: Narrower in application — the crime of aliening (transferring) the same subject to different persons. This corresponds to what common law systems would treat as a fraudulent double conveyance.
Common Language
Modern common usage (Wiktionary): Any fraud not distinguished by a more special name; chiefly applied to sales of the same property to two different persons, or selling that for one's own which belongs to another.
Historical common usage (Webster's 1913): Any fraud not distinguished by a more special name; chiefly applied to sales of the same property to two different persons, or selling that for one's own which belongs to another, etc.
The common and legal definitions are unusually close here, but the alignment is itself a trap. Both Wiktionary and Webster's reflect the Scots law usage almost exclusively, collapsing the broader civilian meaning into the narrow double-conveyance sense. A researcher relying only on general dictionaries will miss the Roman law dimension — stellionate as a general residual category for contractual fraud — which is essential context for reading civilian treatises and early American equity materials that invoke the term more expansively.
Common Confusion
Stellionate is sometimes read as synonymous with simple fraud or deceit, but the term carries a more precise technical function in civil law sources: it denotes a residual fraud category for contractual misconduct not otherwise classified. It is not a synonym for fraudulent misrepresentation generally. Researchers should also distinguish it from estoppel doctrines that address double conveyance in common law systems — those doctrines serve analogous protective functions but arise from entirely different jurisprudential lineages.
Why It Matters in Research
Stellionate is a term a researcher is likely to encounter rather than search for — it surfaces in treatises, equity digests, and civil law commentaries without always being flagged as requiring specialized interpretation. Several navigational cautions apply.
First, the term operates differently depending on the legal tradition of the source. A Scottish or civilian source invoking stellionate may mean something broader or narrower than what an adjacent source intends. Rapalje & Lawrence and Bouvier give divergent emphasis: Rapalje focuses on double-sale and unauthorized-sale scenarios drawn from Roman law; Bouvier presents stellionate as a broad residual fraud category with those scenarios as examples. Neither account fully subsumes the other.
Second, early American equity sources occasionally use stellionate or its Latin form stellionatus when discussing mortgage fraud or double conveyance, borrowing civilian vocabulary before common law doctrine had fully developed its own terminology for these situations. A researcher reading eighteenth- or early nineteenth-century American equity materials should treat the term as a signal that the author is working in a civilian or mixed-law frame of reference.
Third, the term has no meaningful modern statutory life in U.S. law. Its research value is almost entirely historical and comparative. Encountering it in a modern context is unusual enough to warrant scrutiny of the source's jurisprudential orientation.
Fourth, the Kames citation (2 Kames, Equity) repeated across Black's and Burrill anchors the Scots law definition and is worth consulting directly if the research involves Scottish or early American equity borrowings from Scottish sources.
Historical Dictionary Support
The five source dictionaries agree on the core content but differ in scope and emphasis. Black's (both editions) and Burrill are tightly aligned, limiting the definition to the Scots law double-alienation formulation and citing Kames as authority. This reflects a conservative lexicographic choice — defining the term by its clearest and most bounded application.
Rapalje & Lawrence and Bouvier reach further into the Roman law background. Bouvier is the most expansive, presenting stellionate as a general fraud category and offering the stellio lizard gloss as meaningful jurisprudential color rather than mere decoration — the lizard's cunning and color-changing were understood in the civilian tradition as an apt emblem for the concealment inherent in fraudulent contracting. Bouvier's entry is cut off in the available source text but clearly was developing the point that the term covered fraudulent assignment, sale, or encumbrance of property subject to prior claims.
What the historical dictionaries collectively miss: none of them situates stellionate within the broader history of Roman law's actio in factum or explains why civilian systems needed a residual fraud category of this kind — namely, that Roman law's named delicts left gaps that stellionate was designed to fill. For researchers who need that doctrinal context, the historical dictionaries are a starting point, not a complete account.
The Webster's 1913 and Wiktionary entries, while not legal sources, accurately capture the Scots law usage and are reliable for that narrow purpose.
Jurisdictional Note
Stellionate as a distinct legal category has no significant life in modern American common law or statutory systems. It retains historical relevance in Louisiana and other jurisdictions with civilian heritage, where early legal materials may invoke it. In Scotland, the concept has been absorbed into broader fraud and property law doctrine. Researchers working in Scots law, Roman law, or early American equity should treat the term as jurisdictionally specific to those traditions.