Origin of puisneOFr, literally , born later: see puny
Origin of puisneOld French puisne puis afterward ( ultimately from Latin post ; see apo- in Indo-European roots.) ne born ( from Latin nātus ) ( past participle of nāscī to be born ; see genə- in Indo-European roots.)
- (law) Inferior in rank. A puisne justice of a court is a judge other than the chief justice.
- the puisne barons of the Court of Exchequer
- The term is used almost exclusively in common law jurisdictions such as England, Australia, Canada, Sri Lanka, and formerly in Hong Kong. The equivalent term in the United States is associate justice.