Puisne (//; from Old French puisné, modern puîné, "later born, younger" (and thence, "inferior") from late Latin post-, "after", and natus, "born") is a legal term of art obsolete in many jurisdictions and, when current, used mainly in British English meaning "inferior in rank". In the 18th and 19th-century legal world, the word was more often pronounced // to distance it from its anglicized form puny, an adjective meaning "weak or undersized".
The judges and barons of the national common law courts at Westminster, other than those having a distinct title, were called puisne. This was reinforced by the Supreme Court of Judicature Act 1877 following which a "puisne judge" is officially any of those of the High Court other than the Lord Chancellor, the Lord Chief Justice of England, the Master of the Rolls (and the abolished positions of Lord Chief Justice of the Common Pleas, and the Lord Chief Baron of the Exchequer).
Puisne courts existed as lower courts in the early stages in the judiciary in British North America, in particular Upper Canada and Lower Canada. The justices of the Supreme Court of Canada other than the Chief Justice are still referred to as puisne justices.
In England and Wales, a puisne mortgage is a mortgage over an unregistered estate in land where the mortgagee (lender) does not take possession of the title deeds from the mortgagor (borrower) as security. A puisne mortgage may be registered with HM Land Registry as a Class C(i) Land Charge under the Land Charges Act 1972, although even if such a mortgage is registered it will not necessarily be enforceable. Puisne mortgages are generally a second or subsequent mortgage, and in the event of default of the mortgagor generally rank in the order of registration, not in the order in which they were created.
- "Definition of PUISNE".
- "Today's Word: puisne". Logophilius. 15 June 2009.
- See the Senior Courts Act 1981, section 4.
- Law, Jonathan, ed. (2018). "Puisne mortgage". A Dictionary of Law (Ninth ed.). Oxford, United Kingdom: Oxford University Press. p. 547. ISBN 978-0-19-184080-7. OCLC 1043882876.
- Land Charges Act 1972, section 2(4)(i)
- "Practice guide 63: Land Charges-applications for registration, official search, office copy and cancellation". GOV.UK. Retrieved 2021-01-17.
- Land Charges Act 1972, section 13(2)
- Bevan, Chris (2018). Land Law. Oxford, United Kingdom: Oxford University Press. p. 111. ISBN 978-0-19-878976-5. OCLC 1005693921.
- "Land charges". Practical Law. Thomson Reuters. Retrieved 2021-01-17.
- "Definition of puisne mortgage". Lexico.com. Oxford University Press. 2020. Archived from the original on January 27, 2021. Retrieved 2021-01-18.
- Law of Property Act 1925, section 97