ittrium mirmiru mississ missits mistris mistrum mitsuru mittimi murmuri murmurs mutisms mutists mutsumi muu-muu muumuus riitiir rum-tum russism rustsum sim-sim simisti simiti simitis simsimi sirmium sistrum sssssss stisism stity strummy strutty sttitus stu-iii suiriri summiss summist summits summity sursum- sust-it sustrum sutturu symmist symmyst syrmium tim-tim timimus timists titmuss tittyry titumir tityrus trimmis trismus tristis tritium trittys triuris truisms tsimmus tsurumi tsutsui tum-tum tumtums turmits tut-tut tuttuts tuyuti urumtsi yttrium yum-yum yurtrus yuruti yuyutsu