Definition
A Latin-origin term (from Latin *quia nobis ligi* or similar formulaic phrases) used in old English writs as formal words of introduction signifying "because it is given to us to understand." The phrase served as a recital clause — a standard prefatory statement by which the court or issuing authority acknowledged the basis for proceeding. It communicated that the matter had been represented or brought to the attention of the issuing authority, thereby justifying the writ's issuance.
Common Confusion
LIGI should not be read as a substantive legal standard or term of art in its own right. It is a fragment of writ formulary — the operative meaning lives in the complete phrase of which it forms part, not in the word standing alone. Researchers encountering LIGI in a historical record are looking at boilerplate recital language, not a distinct legal concept requiring independent analysis.
Why It Matters in Research
LIGI appears almost exclusively in the formal Latin pleading and writ practice of medieval and early modern English courts. Its significance to researchers is purely contextual: the phrase marks the recital portion of a writ, the introductory clause by which the issuing authority — typically the Crown or a court acting in its name — acknowledged the representation made by the petitioner or party seeking relief. Understanding this function helps researchers parse old writ forms correctly, distinguishing the recital (what was alleged or represented to the court) from the command or operative portion of the writ that follows.
Because this is a term of writ formulary, it will not appear in modern legal materials. Researchers consulting Rotuli Parliamentorum or other rolls of Parliament, plea rolls, or collections of writ forms from the Henrician period and earlier will encounter it in context. Burrill's citation to *Rot. Parl. 4 Hen. IV* (the Parliamentary Rolls of Henry IV's fourth regnal year) anchors the term firmly in late fourteenth- to early fifteenth-century English practice.
Researchers should be aware that Latin writ formulary was highly standardized; identical or near-identical phrases recur across many writs and across long stretches of time without meaningful change in content. The presence of LIGI in a source therefore signals writ form rather than substantive legal development. It does not index any shift in doctrine or jurisdiction.
Historical Dictionary Support
Black's Law Dictionary and Burrill's Law Dictionary are in full agreement on this term, both defining it as formal words in old writs meaning "because it is given to us to understand," and both citing the same source practice. Burrill adds the specific parliamentary roll citation (*Rot. Parl. 4 Hen. IV*), which Black's renders more compactly with the accompanying maxim *quidquid in excessu actum est lege prohibetur* ("whatever is done in excess is prohibited by law") drawn from Coke's *Institutes* (2 Inst. 107) — though that maxim appears in Black's in proximity to LIGI and is not a definition of the term itself.
Neither historical dictionary provides extended discussion, which is appropriate: this is a term of fixed formulary significance, not a contested or evolving legal concept. No modern legal dictionary treatment is necessary or expected.
Jurisdictional Note
LIGI is a term of English writ practice with no application in American law. It is historically confined to common law courts operating in the Latin writ tradition prior to the procedural reforms that displaced Latin pleading.