Koasati Dictionary is one of the first modern dictionaries ever published of a language of the Muskogean language family, whose speakers formerly occupied most of the southeastern United States. When first met by Europeans in the sixteenth century, the Koasati people were living in eastern Tennessee. Early in the eighteenth century they moved to southcentral Alabama and eventually migrated to present-day Louisiana, Texas, and Oklahoma. Today their language survives in southwestern Louisiana, where it is still spoken by the majority of tribal members living there. Published three years after...