Definition
A Latin term from the civil law meaning affixed, fixed, or fastened to. Used in legal texts to describe the physical or legal attachment of one thing to another — most commonly in the context of fixtures, seals affixed to documents, or property joined to land or a larger object. As a participial adjective, affixus modifies a noun to indicate that the subject is attached to something else in a legally relevant way.
Common Language
Modern common usage (Wiktionary): No entry. The term is not in general English circulation.
Historical common usage (Webster's 1913): No entry. Treated as Latin, not naturalized English.
The term has no meaningful common English counterpart. It appears in legal writing exclusively as Latin civil law vocabulary, most often encountered in historical legal texts, glossaries, and treatises rather than modern pleadings or statutes. COMMON LANGUAGE section is omitted on that basis.
Common Confusion
Affixus should not be confused with the English legal term affixed or the broader doctrine of fixtures, though all three concepts share conceptual ground. Affixus is a Latin term of art pointing toward the civil law tradition specifically; modern fixture analysis in common law jurisdictions proceeds under entirely different doctrinal frameworks. Researchers encountering affixus in a historical source should resist reading modern fixture law back into the term.
Why It Matters in Research
Affixus appears almost exclusively in historical sources and in glossaries appended to civil law treatises or Roman law digests. Researchers working in the Law Mind corpus are most likely to encounter it in one of three contexts: (1) historical commentary on the Corpus Juris Civilis or its reception into civilian jurisdictions; (2) early English legal texts where Latin civil law vocabulary was still in active use; or (3) glossaries and digest headings where the term is used as a classification marker rather than as operative legal language.
The practical trap for researchers is terminological drift. When an older English or Scottish legal text uses affixus, it is not necessarily invoking the technical fixture doctrine that common law courts later developed. The civil law concept of attachment was governed by different rules about accession, separation, and ownership than the common law developed, and conflating the two produces historical error.
A secondary trap: the 2nd edition entry runs affixus directly into the following entry AFFORARE without clear separation, a common artifact of early dictionary typesetting. Researchers reading from scanned or transcribed sources should verify they have not picked up a blended definition.
Historical Dictionary Support
Both Black's editions agree precisely: affixus means "affixed, fixed, or fastened to" in the civil law. Neither edition expands the definition with examples or cross-references to related civil law doctrines such as accessio or inaedificatio, which is a gap worth noting. A researcher who finds affixus in a historical source and turns only to Black's will receive accurate but thin guidance.
The Latin dictionary confirms the participial form: affixus, -a, -um, the past participle of affigo (to fasten to, to attach). This confirms that affixus in legal contexts functions descriptively — it characterizes a relationship between objects — rather than naming a distinct legal doctrine in its own right.
Historical legal dictionaries generally treat this term as a pass-through Latin gloss rather than a substantive entry, which reflects its actual role in legal writing: it marks a condition of attachment rather than establishing a rule.
Jurisdictional Note
Affixus as a term of art is confined to civil law systems and to historical common law sources written when Latin remained a language of legal scholarship. It carries no operative weight in modern common law pleadings or statutes. Researchers working in Scottish, Louisiana, Quebec, or South African legal history — all mixed or civilian jurisdictions — are more likely to encounter it in substantive doctrinal contexts than researchers working in purely common law sources.