What does ogallala mean?

"Ogallala" refers to a Native American tribe, specifically the Oglala Lakota, who are part of the larger Lakota Nation. The term is often associated with the Ogallala Aquifer, a vital groundwater resource that underlies parts of eight U.S. states, providing water for agriculture and communities. The name itself is derived from the Lakota language, with meanings related to being "to scatter" or "to spread out."