/sooh'peuhr see"dee euhs, -as'/ , n. , pl. supersedeas . Law.
a writ ordering a stoppage or suspension of a judicial proceeding, of the execution of a judgment, or of the enforcement of another writ.
[ supersedeas, 2nd person sing. pres. subj. of supersedere to SUPERSEDE, the writ being so named because supersedeas, i.e., you shall desist, occurs in it ]