An appellant’s bond to stay execution on a judgment during the pendency of the appeal. Fed. R. Civ. P. 62(d); Fed. R. App. P. 8(b). — Often shortened to supersedeas.

This is a feature of common law, and in particular the American legal system. In most European countries an appeal leads to an automatic stay of execution, unless the judge expressly ordered immediate execution.

If you need a top notch appelate lawyer,  check out AppellateLaw.Net