Definition
In old English law, an excusator was a person who appeared in court to offer an excuse on behalf of another party — typically explaining that party's absence or failure to assert a claim. The excusator was not the same as an essoiner (one who formally cast an essoin, or lawful excuse for non-appearance), but rather a person who presented the excuse without being formally vested with that procedural role.
In old German law, the term carried a different meaning: a defendant; specifically, one who utterly and categorically denied the plaintiff's claim.
The two meanings are geographically and procedurally distinct and should not be conflated.
Common Language
Modern common usage (Wiktionary): One who makes, or is authorized to make, an excuse; an apologist.
Historical common usage (Webster's 1913): One who makes, or is authorized to make, an excuse; an apologist. Marked as obsolete.
Both dictionaries flag this word as archaic or obsolete in common English. The legal meaning is narrower than the common one: an excusator was not merely anyone who offered an excuse, but a specific procedural actor in court presenting a formal excuse of absence or non-claim on another's behalf. The common definition captures no procedural content whatsoever.
Common Confusion
EXCUSATOR vs. ESSOINER: These are easily conflated because both deal with excusing a party's absence from court proceedings. Burrill draws the distinction explicitly: an excusator was not properly an essoiner. An essoiner was formally empowered to cast an essoin — a recognized procedural plea of excuse — and was governed by detailed rules about timing and form. An excusator occupied a looser role, appearing to state an excuse without necessarily holding the formal authority of an essoiner. Researchers treating the terms as synonymous will misread the procedural posture described in historical sources.
Why It Matters in Research
This is an archaic procedural term that appears almost exclusively in medieval and early modern English legal records, treatises such as Fleta, and Coke's Littleton. Researchers encountering excusator in primary sources should be alert to two traps.
First, the term is dual-jurisdictional in origin. The English law meaning (court agent presenting another's excuse) and the old German law meaning (defendant denying the claim outright) are substantively opposite in procedural posture. Context — particularly whether the source is English common law or Continental — is essential to correct reading.
Second, excusator sits in a cluster of related archaic absence-and-excuse concepts: essoin, essoiner, imparlance, and the doctrine of being "beyond sea" (ultra mare). The maxim quoted consistently across the dictionary sources — drawn from Coke upon Littleton — establishes that a party who was beyond the sea for the entire period during which a claim should have been brought is excused from the failure to assert it. This maxim connects excusator to the broader doctrine of excused non-performance and tolling of claims, making the term a useful research bridge between procedural history and substantive excuse doctrine.
For corpus researchers, excusator rarely appears in post-1800 sources. Its presence in a document is itself a dating and context signal. If you encounter it in a 19th-century American treatise, it is almost certainly being used historically or comparatively, not as operative procedural vocabulary.
Historical Dictionary Support
The four source dictionaries present a consistent picture with modest variation. Black's (both editions) and Rapalje & Lawrence each provide the dual English/German definition. Burrill, notably, is the most precise on the English law meaning: he ties the term to Fleta (lib. 6, c. 13, § 1) and explicitly distinguishes excusator from essoiner — a distinction the other dictionaries omit. This makes Burrill the most operationally useful source for researchers trying to understand the procedural role with precision.
All sources reproduce the same Latin maxim from Coke upon Littleton 260, suggesting it was the primary jurisprudential authority for the term's English law usage. None of the dictionaries provide significant discussion of the German law meaning beyond Du Cange's authority; that definition appears to have entered the English dictionaries as a secondary note rather than as a developed doctrine.
What the historical dictionaries do not address: the relationship between excusator and later excuse doctrine in contract or criminal law. The word shares a root and conceptual family with modern legal excuse, but no direct doctrinal lineage connects this procedural role to, for example, excuse of conditions in contract or justification-versus-excuse analysis in criminal law. Researchers should not infer substantive continuity from terminological similarity.
Jurisdictional Note
Excusator as an operative legal term is confined to English common law (medieval through early modern period) and, in its German law sense, to Continental legal history. It has no recognized use in American law as a procedural term. Its appearance in American legal sources is uniformly historical or comparative.
Encyclopedia Cross-Reference
criminal_119: Defenses — Overview and Classification (Justification vs. Excuse) (The Law Mind Criminal Law Encyclopedia) — for the conceptual background of legal excuse doctrine, which shares vocabulary but not direct lineage with excusator.