Definition
In old English law, a traitor; a person guilty of high treason. The term is a Latin borrowing used in early legal texts to designate one who had committed the gravest offense against sovereign authority.
Common Language
Modern common usage (Wiktionary): A deliverer; a name of infamy given to Christians who delivered the Scriptures, or the goods of the church, to their persecutors to save their lives.
Historical common usage (Webster's 1913): A deliverer; a name of infamy given to Christians who delivered the Scriptures, or the goods of the church, to their persecutors to save their lives.
The common meaning and the legal meaning diverge sharply in application but share a common root. In ecclesiastical and general historical usage, traditor carries its original Latin sense of one who hands over or delivers — specifically the early Christian betrayers of sacred texts under Roman persecution. In old English law, the term migrated into the legal vocabulary as a synonym for traitor in the high treason sense, shedding the specific ecclesiastical context entirely. A researcher encountering traditor in a legal source and a historical or theological source should not assume the two uses are interchangeable.
Common Confusion
Traditor and traitor are functionally synonymous in old English legal usage, but they are not interchangeable across all contexts. Traitor is the anglicized form that persisted into modern law; traditor is the Latinate form confined to early legal treatises and ecclesiastical writing. The term should also be distinguished from traditio, a related Latin root appearing in property and civil law contexts meaning the delivery or transfer of a thing — a meaning that preserves the neutral "delivery" sense of tradere without any connotation of betrayal.
Why It Matters in Research
Traditor is a term of historical interest only. No researcher will encounter it in a modern legal instrument, statute, or judicial opinion. Its value is entirely archival: the term appears in early Latin legal treatises that formed part of the foundation of English common law, particularly Fleta (c. late 13th century), and understanding it is necessary for accurate reading of those sources.
Two traps await the researcher working in historical sources. First, the same Latin root (tradere) generates words with sharply different valences — traditor (betrayer, traitor) and traditio (lawful delivery of property) — and confusing them in a medieval or early modern Latin text produces a fundamental misreading. Second, a researcher approaching the term from ecclesiastical history will find that traditor carries a precise and well-documented meaning in the context of the Diocletianic persecution and the Donatist controversy; that meaning does not travel into English legal usage, where the term simply means traitor in the high treason sense.
The term is most likely to surface when working through primary Latin legal sources from the 13th through 17th centuries, or in scholarly commentary on those sources. It does not appear to have generated independent doctrinal development in English law — it is a vocabulary item, not a term of art with attached rules.
Historical Dictionary Support
Black's Law Dictionary (both the first and second editions) and Burrill's Law Dictionary are in complete agreement: traditor means traitor, one guilty of high treason in old English law, and all three sources anchor the term to Fleta. The entries are nearly identical, with Burrill adding the second Fleta reference (lib. 2, c. 52, § 14) and supplying the derivation from tradere. The second edition of Black's contains a typographical error, rendering Fleta as "Fileta," which is worth flagging for researchers who might search for that citation independently.
None of the historical legal dictionaries engage with the ecclesiastical meaning of traditor, nor do they trace the semantic journey from "one who delivers" to "one who betrays." That gap is understandable given the scope of a law dictionary, but it means the legal sources, read alone, obscure the word's full history and can leave a researcher without the tools to recognize the term when it appears in a non-legal medieval text.
Fleta, the anonymously authored Latin treatise on English law composed around 1290, is the sole cited authority across all three dictionaries. This narrow sourcing reflects the term's limited footprint in the formal legal literature — it was a vocabulary choice of a particular era of Latin legal writing, not a term that generated extended legal commentary.
Encyclopedia Cross-Reference
See Law Mind Encyclopedia: High Treason; Early English Legal Treatises.