1. Iowa: From the Iowa tribe's word "Ioway," meaning "the sleepy ones" or "those who dwell by the water."
2. Illinois: From the Illiniwek tribe's word "Illini," meaning "tribe of superior men."
3. Michigan: From the Ojibwe word "mishigamaa," meaning "big water."
4. Wisconsin: From the Ojibwe word "Wiskonsin," meaning "gathering place at the mouth of a river."
5. Ohio: From the Iroquois word "Ohi-yo," meaning "beautiful river."