fit-fit frisius frustum furiiru fursuit fustius futurum itm-ifm ittrium mirmiru misfits mississ missits mistris mistrum mitsuru mittimi muffism murmuri murmurs mutisms mutists mutsumi muu-muu muumuus riitiir rum-tum russism rustsum sim-sim simisti simiti simitis simsimi sirmium sistrum sitifis sssssss stisism sttitus stu-iii stuffit sufiism suiriri summiss summist summits sursum- sust-it sustrum sutturu tim-tim timimus timists titmuss titumir trimmis trismus tristis tritium triumff triuris truisms tsimmus tsurumi tsutsui tum-tum tumtums turfism turmits turriff tut-tut tuttuts urumtsi