After making up the state name Idaho, the politician George Willing created a fake etymology, claiming it came from a Shosoni word meaning “Behold! the sun coming down the mountain.” Despite lacking evidence, this fake etymology was repeated in many textbooks through the 20th century.
In the 1940s, the Idaho Department of Interior would capture beavers and parachute them into dry areas to even out the population density and to better distribute moisture via dam building.
When considering what to name Idaho, a man named George M. Willing suggested Idaho claiming it was an indigenous word meaning “Gem of the Mountains”. The name stuck. Afterwards it came out that it wasn’t an indigenous word and Willing made it up.
The name ‘Idaho’ isn’t actually based off of anything, it was basically just made up by a man named George M. Willing.