Definition
A Latin term meaning something due or owing; a debt or legal obligation. In classical Roman law and early English legal usage, *debitum* denoted an obligation binding on a person to pay or perform — the thing owed, as distinguished from the act of owing or the legal action to recover it. It is essentially the substantive counterpart to *debere* (to owe), capturing the obligation as a fixed legal reality rather than a mere promise or contingency.
The term appears most often in Law Latin maxims and formulaic pleading, particularly in contexts addressing where a debt action may be brought and when a debt obligation matures.
Two associated phrases carry independent legal significance:
1. DEBITUM ET CONTRACTUS SUNT NULLIUS LOCI — "Debt and contract are of no place." This maxim expresses the principle that personal obligations — debts and contracts — have no fixed geographical locality. Because the obligation is personal rather than territorial, an action to enforce it may be brought wherever the debtor is found, not merely where the contract was made or the debt arose. This was foundational to early conflict-of-laws reasoning.
2. DEBITUM IN PRAESENTI SOLVENDUM IN FUTURO — "A debt due now, to be paid in the future." This phrase distinguishes an obligation that has already vested from one whose payment is merely deferred. The distinction matters: a debt can be presently owed even if its due date has not yet arrived.
Why It Matters in Research
Researchers encounter *debitum* most often in three contexts: Roman law texts and their English reception, early common law pleading records, and conflict-of-laws treatises.
The maxim *debitum et contractus sunt nullius loci* appears with some frequency in 18th and 19th century private international law literature and is cited in Story's *Conflict of Laws* — a work that shaped American choice-of-law doctrine. Researchers working on jurisdiction and venue questions in historical sources should recognize this maxim as an early articulation of what became the doctrine that personal actions follow the person.
In old English statutes and Year Books, *debitum* appears in formulaic Latin alongside phrases like *ad debitum reddendum* (to pay the debt), which Burrill traces to the Statute of Westminster II. Researchers reading medieval writs or plea rolls must recognize that *debitum* is a term of art describing the object of the obligation, not the obligation's source.
The phrase *debitum in praesenti solvendum in futuro* is significant in debt and contract law history: it marks the conceptual separation between the accrual of an obligation and the date of payment. This distinction resurfaces in later common law discussions of when a cause of action accrues for limitations purposes — a point the historical dictionaries note but do not develop.
Researchers should be cautious: *debitum* as a standalone term is largely a term of historical and Roman law significance. Modern legal writing replaces it entirely with "debt" or "obligation." Its presence in a source is itself a dating and genre signal — it suggests Roman law influence, civilian tradition, or pre-modern common law pleading.
Historical Dictionary Support
The historical dictionaries are consistent on the core definition: Black's (both editions), Bouvier's, and Burrill's all define *debitum* as something due or owing, a debt. There is no meaningful divergence on the basic meaning.
Burrill provides the most useful historical grounding, tracing *debitum* to Justinian's *Institutes* (3.15.1) and to Statute of Westminster II, c. 18 — confirming that the term was operative in English legal procedure, not merely borrowed Roman vocabulary. This is the kind of detail that helps researchers distinguish between terms absorbed into English practice and those that remained purely academic Latinisms.
Black's (both editions) is more useful for the associated maxims, quoting *debitum et contractus sunt nullius loci* and citing Coke's *Institutes* and Story's *Conflict of Laws*. Bouvier's entry is brief, citing Anderson's dictionary and offering little beyond the baseline definition.
None of the historical sources develop *debitum in praesenti solvendum in futuro* in depth at this entry, though the phrase is noted in Black's first edition. Researchers needing that doctrine should consult the fuller entries on DEBT and ACCRUAL in the historical dictionaries.