Definition
TANTUM carries two distinct senses in old English legal usage, both derived from the Latin meaning "so much" or "only that much."
1. As a type of fine (conveyancing): A fine sur cognizance de droit tantum — commonly shortened to "tantum" — was a species of fine levied upon acknowledgment of the right alone, without the additional fiction of a preceding gift from the cognizor. Unlike other fines that rested on the narrative of a prior feoffment or grant, the tantum was used specifically to pass a reversionary interest already vested in the cognizor. Because no feoffment of a reversion could be supposed (the cognizor was not presently in possession to grant), the ordinary fine sur cognizance de droit come ceo que il ad de son done was unavailable; the tantum filled that gap.
2. As a maxim word: In its simpler Latin sense, tantum appears in the legal maxim tantum bona valent, quantum vendi possunt — "things are worth so much as they can be sold for" — a principle of valuation that grounded market-based appraisal of goods in old English practice.
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Common Language
Modern common usage (Wiktionary): "Tantum" does not appear as a recognized entry in modern English dictionaries; it functions primarily as a Latin adverb meaning "only," "merely," or "so much," surviving mainly in liturgical and scholarly contexts.
Historical common usage (Webster's 1913): Not entered as an English word. Treated as Latin.
The gap here is one of register rather than meaning: the Latin sense ("so much," "merely") maps directly onto the legal usage. The legal significance lies not in a divergence from common meaning but in what technical work the word performs when appended to fine sur cognizance de droit — distinguishing that particular conveyancing form from its close relative. A researcher encountering "tantum" in an old record needs to know it names a procedure, not merely translates an adjective.
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Common Confusion
TANTUM is most likely to be confused with the closely related fine sur cognizance de droit come ceo que il ad de son done ("as of his own gift"), which is the more common form of acknowledgment fine. The distinction is material: the come ceo form required the fiction of a prior gift and operated to convey a fee simple in possession; the tantum form dispensed with that fiction and was suited to reversions and remainders. Collapsing the two produces an error about both the procedural form and the interest being conveyed. Historical sources sometimes abbreviate both forms in ways that obscure which is intended.
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Recognized Forms
/SUBTYPES
The fine sur cognizance de droit tantum is itself a subtype of the broader category of fines as conveyancing instruments. For the full taxonomy, see FINE (conveyance).
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Why It Matters in Research
Researchers working in pre-nineteenth-century English real property records, plea rolls, or conveyancing treatises will encounter "tantum" almost exclusively in the context of fines levied in the Court of Common Pleas. Several practical cautions apply:
The word appears in abbreviated Latin and Law French forms in original records; the shorthand "cog. de droit tant." or similar contractions should be read as tantum fines.
The tantum fine is the vehicle for conveying reversionary interests in the feudal period. If a title chain involves a reversion passing by fine, the operative instrument is almost certainly a tantum rather than the come ceo form. Misidentifying the form leads to misreading the estate being transferred.
The procedure for fines was abolished in England by the Fines and Recoveries Act 1833 (3 & 4 Will. IV, c. 74), which substituted a simpler deed of disentailment. Tantum fines therefore belong entirely to the pre-1833 corpus. Any post-1833 source using the term is either discussing history or citing an earlier authority.
The valuation maxim (tantum bona valent, quantum vendi possunt) surfaces in a different part of the corpus — commercial and probate materials concerning appraisal of goods. Do not import the conveyancing context into a passage that is simply invoking the maxim, or vice versa.
Burrill cross-references Shepherd's Touchstone and Perkins for the maxim, and Blackstone's Commentaries (2 Bl. Com. 353) and Stephen's Commentaries (1 Steph. Com. 519) for the fine form. Researchers should consult those primary treatise discussions directly for the procedural mechanics.
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Historical Dictionary Support
Burrill's Law Dictionary provides the only dictionary treatment located in the Law Mind corpus, and it handles both senses in separate entries without cross-linking them — a small structural gap a researcher should note. Burrill is reliable on both points: the conveyancing definition accurately identifies the distinguishing feature (no feoffment fiction required) and correctly anchors the authority in Blackstone and Stephen; the maxim entry is accurate and the citations to Shepherd and Perkins are sound.
What Burrill does not provide is procedural depth: the mechanics of how a tantum fine was actually levied — the four proclamations, the role of the concord, the note of the fine — are not explained. For that, Blackstone Book II, chapter 21 and the early chapters of Stephen's Commentaries on the Laws of England remain the primary sources. Historical dictionaries generally treat tantum as a lookup term pointing back to the fine taxonomy rather than explaining the full procedure.
No significant divergence between historical dictionary sources is present here; the record is thin but consistent.
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Jurisdictional Note
The tantum fine was a creature of English common law procedure in the Court of Common Pleas and has no parallel development in American law. American jurisdictions did not adopt the fine system as a conveyancing device; colonial and early state practice relied on deeds and, where entailments arose, separate statutory mechanisms. The term appears in American legal writing only in treatises describing English feudal conveyancing history.
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Encyclopedia Cross-Reference
Law Mind Encyclopedia — Fines (Real Property)
Law Mind Encyclopedia — Feudal Conveyancing
Law Mind Encyclopedia — Reversions and Remainders
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