Definition
In feudal law, slaves, captives, or bondmen. The term describes persons held in a condition of unfreedom — whether as chattel slaves, prisoners of war reduced to servitude, or serfs bound to a lord. The word appears almost exclusively in historical and antiquarian legal contexts and has no operative modern legal meaning.
Common Language
Modern common usage (Wiktionary): Plural of "thew," meaning muscular strength or bodily vigor; well-developed muscles.
Historical common usage (Webster's 1913): "Thews" denoted bodily strength, muscles, or sinews; the physical constitution of a person.
The gap between common and legal meaning is sharp and easily missed. In ordinary English, ancient and modern, "thews" refers to physical strength or musculature — entirely unrelated to legal status. In feudal legal usage, the term refers to persons in bondage. A researcher encountering "thews" in a feudal charter or legal commentary must resist the natural English reading entirely.
Why It Matters in Research
Researchers working in medieval legal history, feudal tenure, or the history of slavery and serfdom may encounter this term in primary sources — particularly in Latin-influenced Norman and Anglo-Saxon legal texts, glossaries of feudal law, and antiquarian commentaries derived from Spelman. The risk is misreading: because "thews" carries a robust meaning in ordinary literary and historical English (physical strength, bodily vigor), a researcher skimming a passage may import that meaning into a legal context where the term instead denotes unfree persons.
The term is a marker of a specific stratum of feudal vocabulary. Its appearance in a source signals proximity to discussions of villeinage, serfdom, captivity, or the gradations of unfreedom in medieval tenure systems. Researchers tracing the legal history of bondage, manumission, or the transition from Roman slavery concepts into English feudal categories will find this term at that intersection.
Both Black's and Bouvier's trace the term to Spelman's work on feuds — a foundational antiquarian source. Researchers should be aware that Spelman's Glossarium Archaeologicum (and his work on feuds) is the likely original context for the term's preservation in legal dictionaries. It is not a term with a robust common law case history; it survives primarily through the antiquarian tradition rather than through judicial use.
Historical Dictionary Support
Black's and Bouvier's are in complete agreement: both define "thews" as slaves, captives, or bondmen in feudal law, and both cite the same source — Spelman on feuds. This uniformity reflects the term's narrow provenance: it was carried into American legal dictionaries through the English antiquarian tradition, not through active legal practice. Neither dictionary elaborates further, which itself signals that the term had no living doctrinal content by the time these dictionaries were compiled. The brevity of both entries is informative — this is archival vocabulary, preserved for completeness rather than practical guidance.
Neither dictionary addresses the divergence from the common English meaning of "thews," leaving the researcher to bridge that gap independently. Historical legal dictionaries generally do not flag the ordinary-language false friend here, which is a notable omission given how directly it could mislead.
Jurisdictional Note
This term has no jurisdictional variation in any operative modern sense. It belongs exclusively to the historical law of feudal England and appears in legal dictionaries as an antiquarian entry. It would not arise in the law of any current jurisdiction.