What is a Mediary?

What is a Financial Mediary and why have you never heard of this before?

The word Mediary has no dictionary definition, nor does it have any common usages. Inter-Mediary has a definition. Like other compound words, such as Inter-National, Inter-Denominational, or Inter-Species, it seemed to me that the second half of Inter-Mediary should stand as a word in its own right.

Well, it doesn’t.

It HAS been used by others, mostly in the digital information world, usually referring to a ‘portal, or aggregation’ model like Travelocity.com. A middle man, with or without a distinction. So, some very smart people have tried to use Mediary as an adjective or and adverb, but never as a Noun.