Note that it would likely be odd for someone to be just named Tashina, see the examples mentioned: Tashina is a part of a name, not a full name itself. According to Native Languages of the Americas, "Tashina (pronounced tah-shee-nah) is a popular Lakota Sioux woman's name." It seems this is now used as an independent name.
According to Native Languages of the Americas, "Tashina (pronounced tah-shee-nah) is a popular Lakota Sioux woman's name." It seems this is now used as an independent name.