term:

Supersede

supersede vt

-sed·ed
-sed·ing
1 : to subject to postponement or suspension
;esp
: to suspend the operation of (a judgment or order) by means of a supersedeas
2 : to take the place of in authority
: preempt override
3 : to take the place of and render null or ineffective

Source: Merriam-Webster's Dictionary of Law ©1996. Merriam-Webster, Incorporated. Published under license with Merriam-Webster, Incorporated.