Is there a desktop wiki software that can be sync on a MediaWiki wiki (private)?
I have my own wiki, hosted in a wikifarm, and I was wondering if I could use a desktop wiki software as a local editor.
No. There's desktop software for offline reading (Kiwix most notably) but none for offline editing. It's a hard problem because the editor would have to know about lots of "secondary" pages (templates and the like) to be able to edit the primary page in any useful way.