Definition
A Law French term meaning "passing over," "a passer by," or "a passenger." In medieval legal usage, *trespassaunt* referred to a person traveling along a road or public way — one who passes through or across a place rather than residing or having a fixed interest there. The term appears in early English legal texts in the context of nuisances to public roads, where harm or obstruction to those passing along the way was actionable.
The word should not be confused with the modern legal term "trespass," despite the surface resemblance. A *trespassaunt* was not a wrongdoer but the potential victim — the traveler exposed to peril by a nuisance on or adjacent to a highway.
Common Language
Modern common usage (Wiktionary): No entry. The term is archaic and does not appear in modern general usage.
Historical common usage (Webster's 1913): No entry. By the late nineteenth century the term had passed entirely out of use.
Editorial note: The visual and phonetic similarity to "trespasser" creates a near-automatic misreading for modern researchers. The legal meaning is essentially the opposite of what the modern English word suggests: a *trespassaunt* is a lawful traveler on a public way, not an unlawful entrant onto another's land.
Common Confusion
TRESPASSAUNT vs. TRESPASSER: These terms look nearly identical on the page and share a common Latin root (*transpassare*, to pass across), but they describe opposite legal positions. A trespasser in modern law is one who enters another's property without right. A *trespassaunt* was one who had every right to use the road and whose safety the law sought to protect. Researchers encountering *trespassaunt* in Year Book materials, Britton, or early plea rolls and reading it as "trespasser" will systematically misread the passage.
Why It Matters in Research
This term is a navigational hazard for researchers working in early English common law sources. Its visual proximity to "trespasser" means automated search tools and inattentive transcription alike will conflate it with trespass doctrine — the wrong body of law entirely. *Trespassaunt* belongs to the law of public nuisance and highway liability, not the law of private trespass to land.
Researchers examining medieval highway nuisance cases should watch for *trespassaunt* as a signal term establishing who the protected class of injured parties was. Early nuisance law frequently framed its injury element by reference to harm *a peril de trespassauntz* — to the peril of passengers — making the term load-bearing in determining whether a particular obstruction or danger was treated as a public wrong.
The term does not survive into post-medieval legal literature in any operational sense. By the time Blackstone and his contemporaries were writing, the concept had been absorbed into general discussions of highway nuisance without the Law French vocabulary. Searching for *trespassaunt* in sources after roughly the fifteenth century will return nothing; the underlying concept persists, but the term does not.
Corpus researchers should note that *trespassaunt* appears primarily in sources drawing on Britton and similar early Anglo-Norman treatises. It is unlikely to appear in Year Book print editions that have been modernized or translated, and transcription errors in manuscript-derived sources may render it in variant spellings (*trespassants*, *trespassantz*, *trespassauntz*).
Historical Dictionary Support
Burrill's Law Dictionary provides the sole available historical dictionary treatment. His entry is brief but precise: he supplies the French meaning, identifies the legal context (nuisance to a road), and gives a direct quotation from Britton, chapter 29 — *a peril de trespassauntz*, to the peril of passengers. This is consistent with Britton's treatment of highway nuisance as a public wrong, and Burrill correctly locates the term in its procedural and conceptual home.
No other historical dictionaries in the Law Mind corpus entry this term. Its absence from Jacob's Law Dictionary, Tomlin's, and similar works reflects the term's early obsolescence; it was archaic even by the seventeenth century. Burrill, writing in the mid-nineteenth century and working extensively with early medieval sources, had both the range and the scholarly inclination to recover it.
Researchers should treat Burrill's entry as definitive for this term while recognizing that it draws on a single primary source citation. Independent verification against the Britton text is advisable for any work in which the precise meaning bears legal weight.
Jurisdictional Note
This term is specific to the early English common law tradition and has no equivalent usage in Scots law, civilian systems, or American legal sources. It is a research term only, with no operative legal meaning in any modern jurisdiction.