Ohio and its highpoint

In To The Top: Reaching for America’s 50 State Summits, Joe Glickman says with regard to the frequent use of the word Hi, “I’m not sure if the spelling of ‘high’ was meant to be phonetic or folksy.” However, I suspect using Hi instead of High when talking about Ohio’s highpoint reflects the fact that the name of the state is the word HI buttressed by two Os, and the use of Hi is thus particularly appropriate. (Three other states include the letters hi in their names – Michigan, New Hampshire, and Washington, but none of them has the simplicity and symmetry of the word Ohio.)