Definition
In old Scots law, superare rationes means to have a balance of account due to one — specifically, to be in a position where expenditures exceed receipts, leaving a net deficit that stands as an outstanding obligation owed to the accounting party. The phrase is Latin and translates literally as "to exceed the reckonings" or "to surpass the accounts."
The term arises in the context of formal accountings before Scottish courts or fiscal officers, where an accountant (a person rendering account) would tally receipts against disbursements. When outlays exceeded income, the accountant was said to superare rationes — to have gone beyond the accounts — meaning the residual balance ran in the accountant's favor rather than the principal's. In practical terms, the principal or appointing authority owed the accountant the surplus amount.
Why It Matters in Research
This term is a narrow historical Scots law relic. Researchers are most likely to encounter it when working through early Scottish legal manuscripts, glossaries of Scots law, or materials touching on the Court of Exchequer in Scotland and its accounting procedures. It does not appear in English common law sources and has no meaningful modern usage, statutory or judicial.
The critical research trap is treating superare rationes as a general Latin maxim applicable to accounting law broadly. It is not. It is a term of art from old Scots institutional practice, anchored to the accountability relationship between principals and their financial agents — factors, bailiffs, tutors, and similar actors who rendered formal accounts.
Researchers working on historical Scots law should note that the word rationes here does not mean "reasons" (its more common Latin rendering in legal Latin) but "reckonings" or "accounts" — a usage that reflects medieval accounting Latin rather than classical or juristic Latin. Misreading rationes as "reasons" would produce nonsense in this context.
Because the term appears almost exclusively in the context of exchequer accounting and the formal action of accounting (the actio rationibus distrahendis or analogous Scots proceedings), researchers pursuing it will quickly need to move to materials on Scottish exchequer procedure, the office of comptroller, and Scots law's treatment of fiduciary accounting obligations.
Historical Dictionary Support
All three source dictionaries reproduce essentially the same definition, verbatim or near-verbatim: to have a balance of account due to one; to have one's expenses exceed the receipts. Black's (both editions) and Burrill's Law Dictionary are in complete agreement, which is unsurprising given that Black's historically drew on Burrill for many entries of this type.
Burrill adds the most value by citing the source: Skene's De Verborum Significatione, the foundational glossary of Scots legal terms compiled by Sir John Skene and published in 1597. This is the primary authority for the term and is the correct starting point for any researcher who needs to go beyond the dictionary definition. Skene's entry under "Scaccarium" (exchequer) provides the institutional context that the later dictionary entries strip away.
What the historical dictionaries miss: they give no sense of the procedural setting in which superare rationes would have been invoked, the remedy available to the accountant holding the surplus balance, or how Scottish law distinguished this situation from a simple debt. For those questions, Skene himself and Stair's Institutions of the Law of Scotland are the appropriate resources.
Jurisdictional Note
This term is exclusively a term of old Scots law. It has no counterpart in English common law, civil law jurisdictions, or modern Scottish law. Researchers working in any jurisdiction other than historical Scotland will not encounter it in operative legal sources.