Stare Decisis

STAH-ray dih-SY-sis

Latin: 'to stand by things decided.' The principle that courts follow precedent established by earlier decisions of the same or higher court.

Plain-English definition

Stare decisis is the doctrine that courts should generally follow their own prior decisions and those of higher courts in the same jurisdiction. It promotes stability and predictability in the law. Vertical stare decisis (lower courts must follow higher courts) is mandatory; horizontal stare decisis (a court following its own prior decisions) carries strong but not absolute weight.

More in Latin / Legal Maxim

Pro Se

Latin: 'for oneself.' A litigant who represents themselves in court without an attorney.

Res Judicata

Latin: 'a thing decided.' The doctrine that a final judgment on the merits prevents the same parties from re-litigating the same claim.

Not legal advice. Definitions are for general reference. Consult an attorney before relying on any term in a real case.