Whereas, as the attorneys say, a great many suspect typos will often turn out to be correctly spelled words in French or some other language, let me open by saying that today's entry is almost always a misspelling of the word conference. There are currently 18 examples in OhioLINK (which confers a "high probability" status upon it) and "too many records found for your search" in WorldCat. Evidently, we didn't need to hold a conference in order to admit this outstanding candidate to the bar. Although I have to admit, there was only one case in my own library's database. Nonetheless, I'm confident that you and your cataloging confrères will be able to identify a few more of them in your own.
(Les Deux Confrères [Avocats] or "The Two Colleagues" [Lawyers] by Honoré Daumier, 1865–1870, from Wikimedia Commons.)