Definition
Mala grammatica (Latin: "bad grammar") is a maxim of legal construction expressing that grammatical errors, poor Latin, or false English in a legal instrument do not, by themselves, invalidate it. The operative principle is stated in the full maxim: *Mala grammatica non vitiat chartam* — bad grammar does not vitiate a deed. So long as the intent of the parties can be ascertained from the instrument as a whole, formal errors in grammar or language will not defeat the instrument's legal effect.
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Common Language
Modern common usage (Wiktionary): No general entry. The phrase is pure Latin legal jargon without a contemporary English equivalent in ordinary usage.
Historical common usage (Webster's 1913): Not entered. Both component words — *mala* (bad, evil) and *grammatica* (grammar) — would have been familiar to classically educated readers, but the phrase as a unit belongs to legal Latin, not common discourse.
*Editorial note:* Because this term has no meaningful life outside legal and academic Latin, the COMMON LANGUAGE section serves only to confirm that gap. Researchers should not expect to encounter this phrase outside law dictionaries, early chancery documents, or treatises on deed construction.
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Common Confusion
Mala grammatica is sometimes grouped with *mala fides* (bad faith) or other *mala* compounds in legal Latin. These share only the prefix. Mala grammatica is purely a maxim of construction — it concerns defective drafting, not improper intent or wrongful conduct. Do not conflate it with maxims concerning fraud, mistake, or unconscionability.
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Why It Matters in Research
**Historical document analysis.** Researchers working with early English deeds, charters, or conveyancing instruments will encounter documents written in a mixture of Latin, Law French, and English of wildly varying grammatical quality. The mala grammatica maxim explains why courts routinely looked past those defects to enforce instruments on their substance. A deed that looks defective on its face may be entirely operative under this principle.
**Corpus navigation trap.** Burrill's entry is incomplete as quoted — it breaks off mid-sentence. The full rule, reconstructable from the cited sources (Coke's Reports 9 Co. 48a and Blackstone's Commentaries 2 Bl. Com. 379), extends to encompass both false English and bad Latin. Researchers relying solely on Burrill may miss the full scope of the maxim. Cross-check against Blackstone and Coke directly.
**Wingate's Maxims.** The citation to Wingate's *Maxims* (Max. 18, max. 13) points to a mid-17th-century English maxim collection that organized common law principles for practitioners. This source sits in the earlier layer of the Law Mind corpus and should be treated as reflecting pre-Restoration conveyancing practice.
**Interpretive presumption.** The maxim operates as a presumption favoring validity. It does not mean that language can be wholly unintelligible — courts required that intent be ascertainable. Researchers should note that modern canons of construction have largely absorbed this principle without retaining the Latin label, so contemporary sources may apply the rule without citing mala grammatica by name.
**Connection to deed construction broadly.** This maxim is one of a cluster of construction principles governing early instruments — alongside rules about surplusage, repugnancy, and benign interpretation. Understanding mala grammatica in isolation, without its neighboring maxims, gives an incomplete picture of how courts approached defective instruments.
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Historical Dictionary Support
Burrill's Law Dictionary provides the core entry: the Latin phrase, its translation, the maxim itself, and the cluster of primary citations to Coke, Blackstone, and Wingate. Burrill's entry is truncated in the available text, cutting off before completing the statement that neither false English nor bad Latin will destroy a deed when the intent can be gathered. This is a research caution — not an error in Burrill, but a limitation of the surviving or transcribed text in this corpus.
The citations Burrill supplies are authoritative and well-chosen. Coke's Reports (9 Co. 48a) and Blackstone's Commentaries (2 Bl. Com. 379) are primary sources that establish this maxim in the common law tradition with the weight of the two most cited English legal authorities. Wingate's Maxims, less read today, places the rule in its 17th-century practical context.
No significant divergence among historical dictionary sources is apparent for this term — it is a stable, narrow maxim without contested meaning or evolution across the sources represented in this corpus.
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Jurisdictional Note
The maxim originates in English common law and was carried into American jurisdictions through reception of the common law. Modern deed construction statutes in some states have codified liberal construction principles that achieve the same result, rendering the Latin phrase largely obsolete in contemporary American practice while leaving the underlying rule intact.
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Encyclopedia Cross-Reference
See Law Mind Encyclopedia — Deed Construction; Rules of Legal Interpretation; Maxims of Law
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