Definition
Latin term used in civil and old English law with two related but distinct clusters of meaning:
1. Lot, chance, or fortune. In its classical civil law sense, sors denotes a lot — a physical object made of wood, gold, or other material used in the drawing of lots — and by extension any determination by chance or hazard. The term carried this meaning from Roman practice into early European legal usage.
2. Principal sum. In both civil law and old English law, sors designates the principal sum of money — the capital amount lent, borrowed, or put at interest — as distinguished from the usura or interest accruing upon it. In the context of partnership, sors refers to the capital stock contributed by the partners as the fund from which profit is to be made (the prima pecunia quae confertur in societatem, ut inde lucrum fiat). In old English records, sors also describes the thing or sum actually recovered in an action, as distinguished from the costs attendant upon it.
The two meanings share a conceptual root: the original or base quantity, whether the foundational capital of a fund or the original object drawn in a lottery.
Common Language
Modern common usage (Wiktionary): In current English, "sors" appears primarily as the plural of "sor," a unit of area in certain measurement systems, with no meaningful connection to legal usage.
Historical common usage (Webster's 1913): Webster's treats sors in its Latin form, defining it as a lot and a form of divination by means of lots — specifically noting the Sortes Homericae and Sortes Virgilianae, in which a passage from Homer or Virgil was drawn or opened at random to divine future events or guide conduct.
The gap matters for researchers: the common and classical literary meaning of sors centers on divination and chance, while its operative legal meaning centers almost exclusively on financial principal. A researcher encountering sors in a legal text — particularly an old English record involving debt, lending, or partnership — should default to the financial sense. The divination meaning belongs to classical literature and canon law practice, not to civil or common law pleading.
Common Confusion
Sors is sometimes read loosely as equivalent to the modern term "principal" without appreciation that the civil law concept is broader: it encompasses not only a loan principal but the contributed capital of a partnership and the corpus of a fund set apart to generate return. Researchers should also take care not to conflate sors with usura (interest) or fructus (produce/yield), terms that appear alongside sors in the same source passages precisely because they are its counterparts, not its synonyms.
Why It Matters in Research
Sors appears most frequently in three documentary contexts in the Law Mind corpus: (1) medieval and early modern records of debt and lending, where the formula distinguishing sors from interesse (interest) was a standard pleading device; (2) civil law treatises on partnership and commercial association, where sors names the contributed capital fund; and (3) canonical and theological discussions of usury, where the distinction between recovering sors alone versus sors plus usura was doctrinally critical.
The principal navigational trap is the term's compression. Old English records may abbreviate or deploy sors without explanation, assuming the reader knows whether principal or lot is intended. Context — particularly the presence of terms like interesse, usura, or lucrum — will almost always resolve the ambiguity toward the financial meaning.
Researchers working in ecclesiastical or canon law sources should note that sors retained stronger connections to the lot/divination cluster in that literature, particularly in discussions of simony and sortilege, while its financial meaning dominated in common law and civil pleading records.
Because sors is a Latin term of art that was received into English legal usage rather than translated, it resists displacement by English synonyms in historical documents. Researchers searching for discussions of loan principal in pre-modern English records should include sors as a search term alongside "principal" and "corpus."
Historical Dictionary Support
Black's Law Dictionary (both the first and second editions) and Burrill's Law Dictionary are in close agreement on the substance of sors. All three sources identify the lot/chance meaning and the principal sum meaning, and all three situate the term in both civil law and old English law. Burrill is the most precise on the partnership sense, quoting the Latin definition of the capital stock and attributing the formulation to Grotius, which provides a useful doctrinal anchor for researchers tracing the civil law partnership tradition.
None of the historical dictionaries substantially develop the divination or canonical-law dimension of the term, and none flags the potential for confusion with the literary sortes tradition identified in Webster's. This is an expected gap: legal dictionaries of the 19th century were focused on pleading and transactional use, not on the classical background of the vocabulary they defined.
The Burrill entry's illustrative Latin quotation — "Super trecentas marcas de sorte, et centum marcas de interesse" (for three hundred marks of principal, and one hundred marks of interest) — is the most instructive single example in the historical dictionary record, demonstrating precisely how sors operated in old English record-keeping as a technical term of financial pleading.
Jurisdictional Note
Sors as a term of art belongs principally to the civil law tradition and to English legal records from the medieval and early modern periods. It does not appear as operative legal vocabulary in modern American or English statutory law. Researchers will encounter it almost exclusively in primary sources predating the 18th century or in civil law treatises and commentaries.