What is ottoman or faille fabrics?

A fabric term I was unfamiliar with popped up this week on some new fabrics I was adding - so I took a little time to learn what the term meant. Technically, ottoman and faille refers to a cross grain weave.  First, let's clarify that the weave is different than the fiber content.  In other words, you can purchase a silk ottoman fabric or a wool faille fabric.  The new fabrics I added were polyester faux silk fabrics.  Ottoman fabrics are usually silky with a horizontal ribbing that is a little larger and rounder than a faille fabric.

Faille - silky, ribbed fabric - smaller ribs
Ottoman - silky, ribbed fabric - larger ribs