Definition
A Latin plural noun appearing in old legal records with two distinct senses:
1. Sidesmen, companions, or assistants — persons attending or supporting a principal party, officer, or proceeding. Used in medieval and early modern English legal instruments to describe those accompanying or aiding a chief actor.
2. (Per Burrill) A burden, weight, or measure — appearing in early English law in the context of weights and measures, though this sense is less consistently attested across the major dictionaries.
Both senses are archaic. The term has no active role in modern legal usage and is encountered almost exclusively in the transcription and interpretation of historical English records.
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Common Language
Modern common usage (Wiktionary): Simply the plural of the Latin noun *latus*, meaning "side."
Historical common usage: No independent entry in Webster's 1913; the term belongs to Latin rather than to the English common lexicon.
The geometric or anatomical sense of "sides" (plural of *latus*) carried no freight in legal usage. When lawyers and record-keepers wrote *latera*, they were drawing on an extended sense — persons or things flanking or supporting a principal — that the ordinary Latin meaning alone does not convey. A researcher reading the word in an English legal manuscript should not default to the geometric sense.
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Why It Matters in Research
This term is a trap for researchers working with medieval and early modern English records — plea rolls, court rolls, manorial records, and administrative instruments from roughly the 12th through 17th centuries. The word appears in abbreviated or contracted form in manuscript sources, and its two distinct meanings (personnel vs. weights/measures) are not always signaled by context alone.
**Personnel sense:** When *latera* describes persons, it functions roughly as a descriptor for a retinue, witness group, or panel of assistants. Researchers tracing the composition of courts or official proceedings may encounter it as a collective label for secondary participants. This usage overlaps in function with terms like *assessores* or *socii*, and the distinction matters for understanding who held formal versus supporting roles.
**Weights and measures sense:** Burrill's notation that *latera* could denote a burden, weight, or measure in early English law is significant for economic and commercial history research. Records of tolls, market transactions, and manorial accounts used a sprawling vocabulary of weights and measures, many of them Latinized local terms. If *latera* carried this meaning in a specific regional or institutional context, its equivalence to any standard modern measure is uncertain without corroborating sources.
**Corpus navigation note:** Because the term appears in old records rather than in reported cases or statutes, Law Mind researchers are most likely to encounter it in documentary collections — calendars of patent rolls, close rolls, pipe rolls, and similar administrative archives — rather than in legal treatises or case reporters. Cross-referencing the surrounding Latin vocabulary will usually disambiguate which sense applies.
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Historical Dictionary Support
The three source dictionaries are in substantial agreement on the primary (personnel) sense: Black's (both editions) and Burrill all define *latera* as "sidesmen; companions; assistants" and all attribute the definition to Cowell's *Interpreter* (1607), meaning no independent verification exists across these sources — they share a single root authority.
Burrill alone introduces the weights and measures sense, without elaboration or a source citation beyond the general notation "early English law." This divergence is notable. Either Burrill drew on a manuscript source not available to Black's, or the weights and measures sense reflects a regional or contextual usage that did not achieve general currency. Researchers should treat the second definition as a possibility requiring independent verification rather than an established alternative meaning.
Neither edition of Black's nor Burrill provides example records or contextual phrases, which limits their utility for anyone trying to identify the term in context. Cowell's *Interpreter* itself remains the best starting point for the personnel sense.
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Encyclopedia Cross-Reference
See Law Mind Encyclopedia: Old English and Anglo-Latin Legal Records; Weights and Measures in Historical English Law
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