I assume you've discovered the word is usually spelled "administrivia".
It's fun making up words. My latest is "bibliopotheosis"
On May 29, 2014, at 10:23 AM, Eric Lease Morgan <[log in to unmask]> wrote:
> * Apparently “administratativia” is a word of my own design because a search of it in Google returns only postings I’ve written. No wonder my spell checker doesn’t like it.