Definition
A Latin term meaning root, stock, or line of descent. In inheritance law, stirps refers to a person who stands as the originating ancestor of a branch of a family for purposes of distributing a decedent's estate. The term is rarely used in isolation; its legal force appears primarily in the phrase per stirpes (by the roots or stocks), which describes a method of distributing property by representation — that is, where a deceased heir's share passes down to that heir's own descendants rather than lapsing or being redistributed among surviving heirs at the same generational level.
The opposite of per stirpes distribution is per capita distribution, in which each living heir takes an equal share regardless of which branch of the family they represent.
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Common Language
Modern common usage (Wiktionary): A branch of a family; a progenitor of a branch of a family; a superfamily of animals or plants.
Historical common usage (Webster's 1913): Stock; race; family. A race, or a fixed and permanent variety.
The ordinary English and legal meanings are not deeply at odds, but the legal usage is considerably more precise. In everyday and biological contexts, stirps loosely describes a lineage or breed. In law, it identifies a specific ancestor whose position in the family tree determines how property is allocated among competing heirs. The legal meaning is functional and structural, not merely descriptive of kinship.
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Common Confusion
STIRPS vs. PER STIRPES: Stirps is the noun; per stirpes is the operative legal phrase. Researchers will rarely encounter stirps alone in case law or statutory drafting. The term appears most often in its plural form stirpes, embedded in the phrase per stirpes, and conflating the root noun with the distributional rule can obscure which generation is being treated as the relevant stirps for a given distribution.
STIRPS vs. STOCK: In older English common law texts, stock is frequently used as a functional translation of stirps. The terms are roughly equivalent in context, but stock carries additional meanings in commercial and corporate law that make it an unreliable synonym outside of inheritance discussions.
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Why It Matters in Research
Researchers working with intestate succession materials, wills, and estate administration documents across different periods will need to track how stirps functions at different generational levels within the same distribution scheme — a point that becomes complex in multi-generational estates or when some branches of a family have predeceased others. The term itself is mostly a doctrinal anchor; the analytical work is done by per stirpes and its contrast with per capita.
In historical sources, particularly those drawing on Roman and civil law, stirps appears with greater frequency as a standalone term. Burrill's dictionary reflects the civilian tradition most fully, noting that Roman law (Novella 118) used stirpes to structure succession among descendants. Researchers using pre-nineteenth-century English materials or any civilian-tradition sources (Louisiana, Quebec, and civil law jurisdictions generally) should expect to encounter stirps more prominently than in modern American common law materials, where the phrase per stirpes has largely displaced the root noun.
One navigational trap: Anderson's dictionary entry for stirps partially collapses into an entry on agricultural stock (domestic animals raised on a farm), which appears to be a typographical or editorial artifact from the original compilation. Researchers relying on Anderson's for this term should treat that material as irrelevant to the inheritance law definition and cross-check against Burrill or Black's.
The term's Latin form also creates indexing complications in older digests and reporters. Case law discussing per stirpes distribution may index under stirps, per stirpes, representation, right of representation, or succession, depending on the editorial conventions of the digest series in use.
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Historical Dictionary Support
The historical dictionaries are in substantial agreement on the core definition: stirps means a root or stock of descent, and its legal significance lies in the per stirpes method of succession.
Black's (1st and 2nd editions) define the term consistently and correctly identify the per stirpes / per capita opposition. The second edition adds a case citation — Rotmanskey v. Heiss, 86 Md. 633 — to anchor the definition in American judicial usage.
Burrill's is the most thorough of the shelf sources, tracing the civilian pedigree of the term and citing Novella 118 of Justinian's corpus, which restructured Roman intestate succession along stirpital lines. Burrill correctly notes that the plural stirpes is the operative form in legal usage and cross-references In stirpes and Per stirpes as the relevant working entries.
Anderson's is unreliable for this entry due to what appears to be a mid-entry textual corruption that introduces agricultural livestock definitions unrelated to the inheritance law term.
No historical dictionary on the shelf addresses the modern American statutory treatment of per stirpes distribution, which has evolved considerably in uniform acts (including the Uniform Probate Code's distinction between classical per stirpes and per capita with representation). Researchers should not expect shelf sources to illuminate contemporary statutory nuance.
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Jurisdictional Note
Per stirpes distribution rules vary by statute across American jurisdictions. Some states follow a strict per stirpes approach (dividing at the first generational level regardless of whether any members of that generation survive), while others follow a per capita with representation model (dividing at the first generational level that includes a living heir). Louisiana, as a civil law jurisdiction, treats stirpital succession through its own civilian framework. Researchers should confirm which statutory definition governs in the relevant jurisdiction before mapping historical per stirpes doctrine onto modern cases.
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Encyclopedia Cross-Reference
Law Mind Encyclopedia — Intestate Succession
Law Mind Encyclopedia — Per Stirpes Distribution
Law Mind Encyclopedia — Right of Representation
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