Supersedeas Bond

Supersedeas bonds are related to appeal bonds.
Appeal bonds are designed to be sums of money supplied by the appellant that are put into holding while the appeal of the case is decided. These are required when the appellant decides to appeal the court's judgment. The losing party posts this bond because they are opposing the ruling of the court case. The purpose of appeal bonds is to help the court avoid unnecessary appeals that cost the court valuable time and money to hold.
A Supersedeas Bond is filed by a judgment debtor. It is filed to guarantee that, should said judgment debtor be unsuccessful in having the judgment reversed, the judgment will still be paid in full.