What U.S. state derives its name from the Indian word meaning "longest river"?

Couldn't find 'longest river' but The World Almanac says the name Connecticut comes from Mohican and other Algonquin words meaning 'long river place.'

Longest river is Mississippi.

http://www.encyclopedia.com/places/united-states-and-canada/us-physical-geography/mississippi-river-us (great river- satguru)

Click on Mississippi and read the things listed under state facts.

My first thought was Mississippi as well. Once I found two translations of Mississippi, I decided my thought was wrong.

My source was
https://www.j2e.com/powick+cofe+primary+school/lsk8/The+Mississippi+River+(LK)/

They say the Ojibway called it 'Messipi' meaning Big River or 'Mee-zee-see-bee' meaning Father of Waters.

I cecked out the web site you mentioned Finlady and found the Chippewa called it 'mici zibi' meaning Great River.

In a lot of laguages, some words have to be loosely translated. I think that is the case here. All three native words loosely translate into a phrase about the river's size. Thanks to Finlady, I now think the correct answer is Mississippi. Longest, big and great, all really mean the same in this instance.