As a native Lakota speaker with CRST, Lakhota.com, I can tell you the word "Yuwipi" means "many little clear stones." These stones can be found on the top of ant hills, and have been used in a Lakhota ceremony called "Yuwipi," a Sacred work (Wakan Wicoan) where the dreamer is freed by magic. A Lakhota medicine man is called, "Pejuta wicasa."
