Definition of Supersedeas:
Stay order issued by an higher (appellate) court to preserve the status quo pending review of a lower courts order, judgment, or jurisdiction. Latin for, you shall desist.
More fully writ of supersedeas.
(now chiefly US). A writ commanding the stay of legal proceedings, authorizing an action, or suspending powers. Without writ.
Meaning of Supersedeas & Supersedeas Definition