Definition
MULIER is a Latin and Law Latin term with several related but distinct meanings across civil law and old English common law contexts.
(1) In the civil law, mulier denoted a woman generally, and more specifically a marriageable virgin, a wife, or a mother, depending on context.
(2) In old English and Scotch law, mulier acquired a technical meaning as a legitimate child — specifically, a child born in lawful wedlock — in direct contrast to a bastard. The term was applied to sons and daughters alike, though references to a "mulier son" appear most frequently in the feudal land law context.
(3) As a standalone feudal term, mulier describes the status of being legitimate, and by extension, the heir entitled to take as against a bastard claimant.
The legitimacy sense is the dominant meaning in English legal sources and the one most relevant to common law property and inheritance disputes.
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Common Language
Modern common usage (Wiktionary): A child born lawfully in wedlock, in distinction from an elder sibling born of the same parents before their marriage (bastard eigné).
Historical common usage (Webster's 1913): A woman. Lawful issue born in wedlock, in distinction from an elder brother born of the same parents before their marriage; a lawful son.
The ordinary language definitions capture the legitimacy sense but flatten its complexity. In legal usage, mulier is not merely a descriptor of birth status — it is a term of art that determines priority of heirship in the specific bastard eigné / mulier puisné scenario, and it carries distinct civil law meanings (woman, wife, virgin) that the common definitions omit entirely. Researchers should not assume the term always signals legitimacy; context and the governing legal system (civil vs. common law) determine which meaning applies.
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Common Confusion
MULIER vs. BASTARD EIGNÉ: These two terms appear together as a pair and are sometimes misread as if one necessarily defeats the other in all circumstances. In the classic scenario, a man fathers a bastard son, later marries the mother, and has a second (legitimate) son. The first son is the bastard eigné (elder bastard); the second is the mulier puisné (younger legitimate). Under early English land law, if the bastard eigné entered and held land without challenge during the father's lifetime and the mulier puisné failed to contest, the bastard eigné could in some circumstances retain the land against the mulier. The mulier's legitimacy did not automatically override the bastard's possession. Researchers conflating legitimacy with automatic heirship priority in this context will misread the doctrine.
MULIER (civil law) vs. MULIER (common law): In civil law sources, mulier primarily means woman or wife. In common law sources, it primarily means legitimate child. The same Latin word in a Digest gloss and in a Coke commentary is doing very different work.
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Recognized Forms
/SUBTYPES
MULIER PUISNÉ: The younger legitimate son in the bastard eigné / mulier puisné pairing. "Puisné" means younger or later-born. This is the most technically precise compound use of the term in English feudal law. Bouvier and Black both identify the pair explicitly: the elder bastard (bastard eigné) and the younger legitimate (mulier puisné).
MULIER (as status descriptor): Used in old books to describe any legitimate child — son, daughter, brother, sister — born in lawful wedlock, not limited to the puisné scenario. Rapalje & Lawrence notes the term was applied broadly across family relationships.
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Why It Matters in Research
This term presents a genuine false-friend problem across source types. A researcher reading civil law treatises and common law year books in the same project will encounter mulier meaning "woman" or "wife" in one and "legitimate child" in the other. Failing to track the shift will produce misreadings.
The bastard eigné / mulier puisné doctrine is a feudal land law concept with limited survival into modern property law, but it appears with some frequency in historical title disputes, inheritance cases, and treatise discussions of legitimacy. Researchers working with pre-19th century English and Scotch land records, plea rolls, or Bracton-era materials need to recognize the term immediately.
Bouvier's observation that mulier may derive from melior or the French meilleur (meaning "better" or "superior") is historically noted as a possible folk etymology reflecting the preferential status of legitimate birth — though this etymology is contested. Do not cite it as established linguistic fact.
The term essentially disappears from active legal use after legitimacy doctrine was modernized and the common law's harsh treatment of bastardy softened. In any source from the 19th century onward, mulier used in the legitimacy sense is almost certainly quoting or summarizing older authority rather than applying live doctrine.
Corpus researchers should note that Coke's Institutes (1 Inst. 243, cited across multiple source dictionaries) is the anchor text for the English law definition. When historical dictionaries cite "Co. Litt. 243 b" or "8 Co. 102 a," they are drawing from the same Coke foundation. Apparent convergence across Bouvier, Black, and Burrill on this point reflects shared sourcing, not independent corroboration.
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Historical Dictionary Support
The five source dictionaries agree on the core civil law meanings (woman, wife, virgin, mother) and on the English law legitimacy meaning, but they organize and emphasize differently.
Black's (both editions) leads with the four civil law senses and adds the mulier puisné compound in the first edition only. The second edition omits the mulier puisné entry without explanation — a meaningful gap for researchers relying solely on the second edition.
Burrill provides the most technically precise breakdown, distinguishing the civil law senses (general woman, marriageable virgin, non-virgin woman, wife, mother) with specific Digest and Calvinus references, then separately addressing the English and Scotch law meaning of "lawful son." Burrill is the most useful starting point for civil law research on this term.
Bouvier adds the historically interesting observation that mulier was anciently used for "wife" and sometimes "widow," and explicitly states that a virgin is included within the term — relevant for civil law contexts where the marital or sexual status of a woman affected her legal capacity. Bouvier also preserves the meilleur etymology note.
Rapalje & Lawrence is fragmentary in the surviving text but confirms the Norman-French form muliere and the breadth of the term's application across family relations.
No source dictionary fully addresses the evidentiary tension in the bastard eigné / mulier puisné doctrine — specifically, the conditions under which the bastard's possession might defeat the mulier's claim. Researchers needing that analysis must go beyond the dictionaries to Bracton, Littleton, or Coke directly.
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Jurisdictional Note
The legitimacy sense of mulier is primarily an English and Scotch common law term. Civil law jurisdictions (including Louisiana in the American context) used mulier in the Roman law sense of woman or wife. Researchers working in mixed-jurisdiction archives should identify the governing legal tradition before assigning meaning to the term.
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Encyclopedia Cross-Reference
See Law Mind Encyclopedia: Legitimacy — for the broader doctrine of legitimate birth and its legal consequences.
See Law Mind Encyclopedia: Bastard Eigné and Mulier Puisné — for the feudal land law doctrine in which this term plays its most technically precise role.
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