Thus undistracted, I am able to consider the supersedence of the United Kingdom as the supreme legal and political authority in these Islands and how the battlefield now lies.    From Wordnik.com.  [Archive 2008-03-02] Reference

The only way to uninstall patches back then was to installing a patch that obsolesces (the predecessor to supersedence) another patch, optionally carrying a file payload to avoid prompts for source to replace older files.    From Wordnik.com.  [MSDN Blogs] Reference