Definition
A Latin phrase meaning "for the well-being" or "for the better being." In equity practice, a bill *de bene esse* is a proceeding brought to preserve testimony of witnesses to a fact material to a suit at law that has already been commenced, where there is good cause to fear that the testimony may otherwise be lost before trial. The term is almost always encountered in its full procedural form — *bill de bene esse* — rather than standing alone.
The phrase signals conditionality: the proceeding is taken *de bene esse* when something is done provisionally or for preservation purposes, on the assumption that it may be needed and would otherwise be unavailable. A deposition taken *de bene esse* is one taken out of the ordinary course, preserved against the contingency of a witness's unavailability at trial.
Common Confusion
*Bene esse* is sometimes loosely conflated with a perpetuation of testimony bill, but the two are technically distinct. A bill to perpetuate testimony is brought *before* any suit is commenced, to preserve evidence for future litigation. A bill *de bene esse* presupposes that a suit is already pending and that there is an immediate, specific risk — typically a witness who is aged, infirm, or about to leave the jurisdiction — that justifies extraordinary preservation. The distinction matters in historical sources, where courts occasionally used the terms interchangeably despite the doctrinal difference.
Recognized Forms
/SUBTYPES
Bill de bene esse: The primary procedural vehicle. A bill in equity filed in a pending action to take and preserve witness testimony where the witness is aged, infirm, ill, or about to depart in a manner that makes attendance at trial uncertain. This is the form that virtually all historical dictionary sources address.
Deposition de bene esse: Testimony taken under the same rationale outside the bill context — a deposition captured provisionally, conditioned on the witness's actual unavailability at trial. If the witness appears and testifies, the preserved deposition is typically set aside.
Why It Matters in Research
Researchers will almost never encounter *bene esse* in isolation. It functions as a qualifier modifying a procedural action — look for the full phrase *de bene esse* in historical equity materials, chancery records, and pre-Federal Rules civil procedure sources.
The bill *de bene esse* is a creature of equity practice that largely disappeared as a formal procedural mechanism with the merger of law and equity under modern civil procedure. Federal Rule of Civil Procedure 27 (perpetuation of testimony before or pending action) displaced most of the functional need. Researchers working in pre-merger federal or state records — particularly nineteenth-century chancery materials — will encounter this term with some frequency.
The distinction between this bill and a perpetuation of testimony bill was practically significant because courts required strict threshold showings for each. Conflation in older sources can mislead researchers about what procedural posture a case was actually in.
The witness-availability triggers — age, infirmity, imminent departure from the jurisdiction — are the same triggers that evolved into modern *unavailability* standards for hearsay exceptions and deposition use. Researchers tracing the history of those doctrines may find *de bene esse* bills a useful precursor.
Historical Dictionary Support
Black's and Bouvier's are in near-complete agreement, drawing on overlapping authorities (Story's Equity Jurisprudence, Cooper's Equity Pleading). Both define the term exclusively in its equity practice context. Bouvier adds the practical trigger detail — aged or infirm witnesses — and cites Cooper's Equity Pleading directly for that proposition, which Black's omits.
Neither source addresses the deposition *de bene esse* outside the bill context, though that usage became common in American practice. Both sources are silent on what happens when the feared unavailability does not materialize, a gap practitioners and later courts had to fill. Story's Equity Jurisprudence remains the primary treatise authority underlying both entries.
Jurisdictional Note
The bill *de bene esse* operated in jurisdictions that maintained separate courts of equity. In states that merged law and equity early, or that never had robust chancery practice, the procedural form was adapted or absorbed into general deposition practice. Modern relevance is confined almost entirely to historical research in pre-merger records.