Board Thread:Support Requests - Getting Technical/@comment-26158330-20160420171840/@comment-25239866-20160420183146

Fandyllic wrote: Wikia probably doesn't want you to change the names, since they only show up mostly in admin/maintenance pages.

Why do you want to do this?

Do you mean perhaps how to change the name in the user profile tag for things like Founder and Admin? I mean that but also the name in some special pages such as Special:ListGroupRights. See Help:System messages/whitelist/list to found the full list of editable messages including the ones that you mean in your question