Mass. Gen. Laws ch. 261, § 21

If the appellant is liable for the costs, the appellee may take out execution and cause it to be satisfied, if he first gives bond with sufficient surety, who shall be approved by the clerk, in a sum equal to the costs, payable to the appellant, conditioned to repay such part of the costs as may be disallowed upon the appeal, and to perform such other order as the court or justice shall make thereon.