rule nisi
Preserved but no longer current.
Meaning · English
A "rule** is an order from one of the superior courts, and a "rule nisi" (cp. NISI) is such an order "to show cause.
Era: ca. 1898 (Victorian)
Sources & notes
Reproduced from Brewer’s Dictionary of Phrase and Fable (1898 edition, public domain; archive.org, retrieved 2026-07-31; OCR text, minor errors possible). Reflects the scholarship and attitudes of its era.
Common questions
What does “rule nisi” mean?
A "rule** is an order from one of the superior courts, and a "rule nisi" (cp. NISI) is such an order "to show cause.
Is “rule nisi” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.