Definition
In forest law, fenatio refers to the fawning of deer — that is, the season during which deer give birth to their young. As a term of art within the law of the forest, it designated a legally significant period during which particular protections and restrictions applied to deer and the forests in which they ranged. The term derives from medieval English forest law, a body of royal law governing the king's forests that was largely separate from the common law.
Why It Matters in Research
Fenatio is a narrow, archival term unlikely to appear outside of texts dealing specifically with medieval English forest law. Researchers encountering it should understand that forest law was a distinct legal system — administered through special courts such as the Court of Attachments, the Swainmote, and the Court of Justice Seat — that regulated hunting, timber, and animal husbandry within royal forests. Violations committed during protected seasons like fenatio were treated with particular severity, as they struck at the king's proprietary interest in deer (venison) and habitat (vert).
The term will surface most often in historical treatises, glossaries, and commentaries on forest law rather than in case reporters or statutes. Spelman's Glossarium Archaeologicum, cited by all three source dictionaries, is the primary philological authority. Manwood's Treatise and Laws of the Forest (various editions, 16th–17th century) is the foundational English-language treatise on forest law and provides the most detailed treatment of seasonal restrictions on deer. Researchers working in English legal history, land law, or royal prerogative should situate fenatio within the broader framework of fence month — the roughly thirty-day period surrounding the fawn season during which entry into the forest and disturbance of deer were prohibited.
Trap for historical researchers: the term is easily overlooked or misread in manuscript sources, and its connection to the fence month may not be explicit. The relationship between fenatio and fence month is definitional — the fence month was the protective period corresponding to the fawning season — but the two terms are not interchangeable. Fenatio names the biological event; fence month names the legal restriction built around it.
Historical Dictionary Support
All three source dictionaries agree precisely on the definition: fenatio means the fawning of deer or the fawning season, within the context of forest law. All three cite Spelman as their authority, and none elaborate beyond this core meaning. There is no divergence among the sources.
What the historical dictionaries do not supply is functional legal context. None of the three entries explains how fenatio operated within the forest law system, what consequences attached to disturbance of deer during this season, or how the fawning season related to the fence month. For that context, researchers must go to Manwood and to later historians of English forest law such as Turner (Select Pleas of the Forest, Selden Society, 1901), who edited primary records from the forest eyre and swainmote courts.
The 2nd edition of Black's is notable for placing the FENCE entries immediately after FENATIO, which reflects alphabetical coincidence rather than conceptual connection — though the fence month and fenatio are substantively linked, the dictionary does not draw that connection explicitly.
Jurisdictional Note
Fenatio is exclusively a term of English royal forest law and has no counterpart in American law. American jurisdictions received the common law at reception but did not inherit the forest law system, which was a prerogative institution tied to the English Crown. The term has no operative legal significance in any U.S. jurisdiction.