Oskaloosa derives its name from Ouscaloosa who, according to town lore, was a Creek princess who married Seminole chief Osceola. A local tradition was that her name meant "last of the beautiful." (This interpretation of "last of the beautiful" is not correct. "Oskaloosa" in the Mvskoke-Creek language means "black rain," from the Mvskoke words "oske" (rain) and "lvste" (black). "loosa" is an English corruption of the Mvskoke word "lvste". See for example the Wikipedia entry for Tuskaloosa, eponym of the town of Tuscaloosa, Alabama. In addition the Mvskoke word "Ouscaloosa" means "Black Water").