The story
- CherokeeᏔᎾᏏ (tanasi)
- EnglishTennessee
- English todaytennessine
From Tennessee + -ine, named after the Tennessee region. Promulgated in June 2016 by the IUPAC based on recommendations of the Joint Institute for Nuclear Research, Oak Ridge National Laboratory, Vanderbilt University and Lawrence Livermore National Laboratory to honor the region where the element was discovered. Suffix -ine, rather than -ium, is due to it being a halogen (like fluorine or chlorine).
Etymology from Wiktionary, CC BY-SA 4.0.