Definition
Sideration does not appear as a term of art in the legal dictionaries of the Law Mind corpus in its own right. The source material provided under this headword — from Rapalje & Lawrence — is a misplaced entry for "Judgment on the merits," suggesting either an indexing anomaly in the source volume or a transcription displacement. No independent legal definition of "sideration" as a legal term has been located in the corpus.
As a word of the general language, sideration refers to a sudden, apparently causeless physical affliction — a blast or blight striking plants, or, by extension, a sudden stroke of disease in humans (apoplexy, paralysis) formerly attributed to planetary or stellar influence. The term is archaic and marked obsolete in standard references.
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Common Language
Modern common usage (Wiktionary): "The state of being siderated, or planet-struck"; a blight in plants; or a sudden and apparently causeless stroke of disease, as in apoplexy or paralysis.
Historical common usage (Webster's 1913): "The state of being siderated, or planet-struck; esp., blast in plants; also, a sudden and apparently causeless stroke of disease, as in apoplexy or paralysis. [Obs.]"
The common meaning is itself archaic. There is no distinct legal meaning that diverges from the common one — rather, the legal corpus appears not to have adopted this term as a term of art at all. Any researcher encountering "sideration" in a legal text should treat it as ordinary language (or a scribal curiosity) rather than as a defined legal concept.
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Common Confusion
Do not conflate the displaced Rapalje & Lawrence text with any legal definition of sideration. The substance of that entry — judgment on the merits, demurrer, and trial — belongs to a wholly separate headword. See JUDGMENT ON THE MERITS.
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Why It Matters in Research
Researchers encountering "sideration" in historical legal materials are almost certainly dealing with one of three situations: (1) a displaced or misbound entry in a printed dictionary, as appears to be the case with the Rapalje & Lawrence source here; (2) the term used in its ordinary medical or botanical sense within a pleading, inquest record, or cause-of-death narrative, particularly in pre-19th-century English common law documents where coroners' inquests and tort-adjacent records might reference sudden unexplained death or injury; or (3) a transcription or OCR error in a digitized corpus.
The Rapalje & Lawrence entry labeled under this headword is plainly the substance of "Judgment on the merits" — a well-defined procedural concept entirely unrelated to sideration. Researchers relying on alphabetical lookups in digitized versions of that dictionary should verify the physical page sequence of the print edition before drawing any inference about how Rapalje & Lawrence defined or used this term.
If the research goal is the medical-legal concept of sudden unexplained incapacity — relevant, for example, in historical negligence, workers' compensation antecedents, or coroner's inquest records — the operative vocabulary in legal sources will be apoplexy, sudden death, visitation of God, or act of God, not sideration.
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Historical Dictionary Support
No legal dictionary in the Law Mind corpus provides a substantive definition of sideration as a legal term. The Rapalje & Lawrence entry reproduced under this headword is the definition of "Judgment on the merits" and should be consulted under that heading. Webster's 1913 and Wiktionary confirm that the word belongs to general and largely obsolete English, not to legal vocabulary. The absence of a legal definition across the corpus is itself informative: this is not a gap in the dictionaries but an accurate reflection that the term never achieved technical legal status.
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