Definition
A Latin phrase meaning "in the first place" or "in the foremost place." Used in legal argument and legal writing to signal that what follows is the primary, threshold, or most foundational point in a series. It is an adverbial marker of logical priority, not temporal sequence — it introduces the leading point upon which subsequent arguments depend, not merely the first item listed.
Common Language
Modern common usage (Wiktionary): Not in general modern English use. Where encountered outside legal or scholarly contexts, it appears as a borrowing from Latin to mean "first of all" or "principally."
Historical common usage (Webster's 1913): Not separately defined; subsumed under Latin phrases in common scholarly and ecclesiastical use, meaning "chiefly" or "first of all."
The gap between common and legal usage is narrow but worth noting: in ordinary Latin-derived English, in primis suggests mere sequence ("first of all"). In legal argument, however, the phrase carries the additional weight of logical priority — the point so introduced is not just first, but foundational. A reader of historical legal argument who misreads it as simple enumeration may underestimate the structural importance the writer assigns to what follows.
Common Confusion
IN PRIMIS is frequently treated as interchangeable with IMPRIMIS, and Bouvier explicitly notes that imprimis is the more common written form. The two are variant spellings of the same Latin construction and carry identical meaning in legal usage. Researchers should search both forms in historical sources, as scribal convention and typesetting practice varied. Neither form should be confused with IN PRINCIPIO ("at the beginning"), a related but distinct phrase used in citation practice to direct the reader to the opening of a legal text or authority, not to rank the logical weight of an argument.
Why It Matters in Research
The primary research value of this entry is terminological: knowing to search both IN PRIMIS and IMPRIMIS when working through historical legal texts, pleadings, briefs, and treatises. The phrase appears frequently in pre-twentieth-century argumentation and in early statutory preambles. Magna Carta (as Burrill notes) uses the construction in its opening chapter, and understanding its function there — signaling not just sequence but primacy of the grant to the English church — is essential context for scholarship on that document.
Researchers reading historical Law Mind corpus materials should be alert to the following: (1) the phrase appears in argument to introduce the point the writer considers dispositive or most weighty; (2) it often signals that the writer believes the court or reader need not reach subsequent points if the first is accepted; (3) in documentary sources such as wills, deeds, and statutes, it may introduce the primary operative clause. Missing this structural function and treating it as a generic "first" can distort interpretation of a document's internal logic.
The phrase has essentially disappeared from modern legal writing, replaced by plain-English constructions ("first," "most importantly," "at the outset"). Its presence in a document is therefore itself a dating signal, characteristic of common law writing through the nineteenth century.
Historical Dictionary Support
All five source dictionaries agree on the core definition: "in the first place." The agreement is complete and the entries brief, reflecting that this is a phrase with a stable, uncontested meaning across the period these dictionaries cover.
Bouvier adds the most useful practical note, flagging that imprimis is the more common written variant and cross-referencing it explicitly. This is the only instance where the sources diverge in any meaningful way, and it is a matter of orthographic practice rather than substantive disagreement.
Burrill is the only source to anchor the phrase in a specific text — Magna Carta, chapter 1 — which is genuinely useful. It confirms that the phrase carried rhetorical and structural weight even in foundational constitutional documents, not merely in courtroom argument.
Rapalje & Lawrence's entry is fragmentary in the source material as transmitted, but the core definition aligns with the others. The surrounding entries in that source (IN PRINCIPIO, IN SIMILI MATERIA, IN PROPRIA PERSONA) confirm that these dictionaries treated in primis as part of a family of Latin adverbial and prepositional phrases used to orient the reader within a document or argument.
What the historical dictionaries do not address: none of the sources explains the rhetorical convention governing when the phrase was used — that is, that it typically introduces the argument considered controlling, not merely first in order. Researchers should supply that interpretive context from practice, not from these dictionary definitions.
Encyclopedia Cross-Reference
See Law Mind Encyclopedia: Latin Maxims and Phrases in Common Law Practice; Magna Carta — Text and Commentary.