Instead the prefix ergo is mainly a marketing term used to name a product and give it the connotation that it possesses good ergonomics and is worth the money to buy it. Marketers in the American market place do the same thing with the prefix euro.
It is important to note that there are no governing bodies that regulate claims of ergonomics. So just because the product is called the "ergo-mop" there is nothing but your own judgement that proves it is ergonomic.

