Analysis of information sources in references of the Wikipedia article "Minnehaha County, South Dakota" in English language version.
In the language of the Sioux, a waterfall was haha; water itself was minne. White men by a misunderstanding had coupled the two words, and produced Minnehaha Falls, a name thus meaning "water-waterfalls-falls". By a complete though natural misunderstanding of haha, the name had been romantically translated as Laughing Water