Kejjis Nar was a joined male Trill in the 23rd century. He was a gymnast, and participated in an interplanetary competition held at the University of Mississippi in Oxford, Mississippi on Earth in 2245. During that event, he prevented the murder of fellow Trill Emony Dax by putting himself between her and Sinnit Arvid, a disgruntled Tessma competitor. He himself was grievously injured by Arvid, but survived due to the efforts of a young human, Leonard McCoy. Kejjis Nar was at least the fourth joining for the Nar symbiont. (DS9 - The Lives of Dax short story: "Old Souls")