Definition
A Latin term from Roman law meaning "to make good" or "to stand responsible for." In classical Roman legal usage, *praestare* denoted a category of personal obligation — a duty to answer for, warrant, or guarantee — as distinct from obligations involving the transfer of property or the performance of a physical act.
*Praestare* appears most significantly as one element of a three-part formula used in Roman jurisprudence to classify the content of legal obligations. The tripartite expression *dare, facere, praestare* described the full range of what a legal obligation could require: to give (*dare*), to do (*facere*), or to make good/stand surety (*praestare*). This formula was used by Roman jurists to characterize the nature of a *stipulatio* or other obligatory undertaking, and to distinguish real rights from personal ones.
Common Confusion
The term is frequently encountered in garbled or anglicized form in older legal texts and secondary sources, sometimes appearing as "priest are," "praestáre," or similar corruptions. Any encounter with the phrase "priest are" in a legal source should be read as a transcription or OCR error for *praestare*. The two have no relationship in meaning.
Why It Matters in Research
Researchers working with Roman law materials, civil law treatises, or early common law sources that draw on Roman foundations will encounter *praestare* in its formulaic context alongside *dare* and *facere*. The distinction matters because it signals what kind of obligation is being described: *praestare* obligations were personal in character — closer to a guarantee or warranty — and did not involve conveyance of a thing or completion of a task in the ordinary sense.
In Law Mind corpus research, the most likely encounter with this term is as a corrupted form in OCR-processed historical texts. If a source contains the phrase "priest are" in what appears to be a legal or Latin context, treat it as a digitization artifact for *praestare* and read accordingly. This is especially likely in scanned editions of Roman law commentaries, civil law digests, and early English legal treatises that incorporate Latin maxims.
Researchers using historical dictionaries should note that *praestare* is underrepresented in English-language legal dictionaries because it is a term of art from Roman and civil law that did not migrate directly into common law vocabulary. Its presence in a source is a strong signal that the text is engaging with civilian or Roman law doctrine rather than common law categories.
Historical Dictionary Support
Black's Law Dictionary (2nd Ed., Supplemental) provides the most direct entry, defining *praestare* as meaning "to make good" and noting its use in conjunction with *dare* and *facere* to denote "obligations of a personal character, as opposed to real rights." This is consistent with classical Roman jurisprudential usage as preserved in Justinian's *Digest* and the *Institutes*, where the *dare-facere-praestare* triad serves as a foundational classificatory tool for obligatory relationships.
Historical English-language legal dictionaries offer limited independent treatment of the term, reflecting its confinement to civil law scholarship. Researchers should look to civilian sources — commentaries on the *Corpus Juris Civilis*, Pothier's work on obligations, and their English translators — for fuller exposition.