supersedure n 1: act of replacing one person or thing by another especially one held to be superior [syn: {supersedure}, {supersession}]
Supersedure \Su*per*se"dure\, n. The act of superseding, or setting aside; supersession; as, the supersedure of trial by jury. --A. Hamilton. [1913 Webster]
23 Moby Thesaurus words for "supersedure": agency, change, commutation, delegation, deputation, deputyship, displacement, exchange, power of attorney, quid pro quo, replacement, representation, subrogation, substitution, supersedence, superseding, supersession, supplantation, supplanting, supplantment, switch, tit for tat, vicariousness