Thread:Merrystar/@comment-3309434-20120921231053/@comment-11001-20120922032736

You would need to decide which wiki to "keep" and which to close. Then use Export/Import to move any good content from the "close" wiki into the "keep" wiki. Using the Export/Import function will preserve edit histories. Somebody needs to be an admin on the wiki where you want to import the pages, but you can export without admin rights.

Once you have merged the content, and made sure contributors on both wikis are ok with the merge, then you can write to Special:contact. Ask that the "close" wiki be closed and redirected to the "keep" wiki. You can set either URL as the final URL of the merged wiki.

Let me know if you have any questions!