Definition
Novatio is the Latin term for novation as it appears in civil law sources. It refers to the substitution of a new obligation for an existing one, with the effect of extinguishing the original obligation entirely. The new obligation replaces — rather than supplements — the old one, releasing the original debtor, creditor, or obligation from legal force.
Novatio operates through consent of the parties and requires that the new obligation differ from the old in at least one essential element: the parties, the subject matter, or the cause. Unlike a mere modification of an existing obligation, novatio produces a clean legal break. The prior obligation is discharged, and the new one stands on its own footing.
The maxim associated with the doctrine — novatio non præsumitur, novation is not presumed — captures its most practically significant feature: courts do not infer novation from ambiguous circumstances. The intent to extinguish the prior obligation and substitute a new one must be clear.
Common Confusion
NOVATIO vs. DELEGATIO: In Roman and civil law sources, delegatio (delegation) is closely related but distinct. Delegatio typically involves the transfer of a debtor's obligation to a third party, and it may or may not constitute a novatio depending on whether the original debt is simultaneously extinguished. Researchers encountering delegatio in civil law materials should not assume it always produces novation; the texts often treat them as overlapping but not identical operations.
NOVATIO vs. ACCORD AND SATISFACTION: In common law systems, the functional equivalent of novatio is often discussed under novation, accord and satisfaction, or substituted contract. These are not interchangeable. Accord and satisfaction discharges a claim upon performance; novation substitutes a new obligation before performance. Researchers working across civil law and common law materials should be alert to false cognates.
Why It Matters in Research
The term novatio will appear in its Latin form primarily in civil law sources: Roman law digests, medieval glosses, early modern treatises on Spanish and French civil law, and in materials addressing Louisiana, Scotland, and other mixed or civilian jurisdictions. In those contexts, novatio is the operative term, not novation, and the doctrinal rules may differ subtly from common law treatments.
The maxim novatio non præsumitur is frequently invoked in disputes over whether a subsequent agreement between parties extinguished an earlier debt or merely modified it. Researchers tracing this principle through Louisiana or Scottish case law should search for both the Latin maxim and its vernacular translations, as courts in those jurisdictions cite it in both forms across different eras.
Burrill's entry points to Fleta's variant term innovatio — a spelling that appears in medieval English legal manuscripts and may not surface under standard searches for novatio or novation. If you are working in pre-modern English sources with civil law influence, search for innovatio as an alternate form.
The reference to Burge on Suretyship signals an important research connection: novatio has particular significance in surety law because substituting a new debtor or altering the terms of the principal obligation can operate to discharge the surety. Researchers examining historical suretyship disputes should check whether a claimed novation was raised as a defense to surety liability, which is a recurring pattern in both civil and common law materials.
Historical Dictionary Support
Burrill's entry is sparse but precise. It correctly identifies novatio as a civil law concept operative in Holland, Spain, France, Scotland, and Louisiana — jurisdictions where Roman law foundations persisted in recognizable form — and distinguishes it implicitly from pure common law settings where novation doctrine developed along different lines. The citation to Fleta's use of innovatio is a rare and useful flag: Fleta, the thirteenth-century English legal treatise, occasionally absorbed civilian terminology, and Burrill's note that the same doctrine appears there under a variant spelling is the kind of navigational detail that saves researchers from missing relevant material. The maxim novatio non præsumitur appears in Halkston's Maxims and is one of the better-attested civil law maxims in anglophone legal literature. No historical dictionary in the Law Mind corpus treats novatio at great length; for fuller doctrinal treatment, researchers should proceed to the encyclopedia entries and to the primary civilian treatise literature.
Jurisdictional Note
Novatio as a formal doctrine with its Latin terminology is most directly applicable in Louisiana, Scotland, and jurisdictions with explicit civilian legal heritage. In common law jurisdictions, courts apply functionally equivalent rules under the heading of novation but without the Roman law framework; the doctrinal contours, particularly around presumption and proof of intent, may differ in application even when the underlying concept is similar.
Encyclopedia Cross-Reference
Law Mind Encyclopedia — Novation
Law Mind Encyclopedia — Obligations (Civil Law)
Law Mind Encyclopedia — Suretyship