ittrium mirmiru mississ missits mistris mistrum mittimi murmuri murmurs mutisms mutists mutsumi muu-muu muumuus riitiir rum-tum russism rustsum sim-sim simisti simiti simitis simsimi sirmium sistrum sssssss stisism sttitus stu-iii suiriri summiss summist summits sursum- sust-it sustrum sutturu tim-tim timimus timists titmuss titumir trimmis trismus tristis tritium triuris truisms tsimmus tsurumi tsutsui tum-tum tumtums turmits tut-tut tuttuts urumtsi