di-tri- diddums didimus dig-dig digiti- digitus dimitri dimmitt disgird disgust dismiss dismist dugdugi dum-dum dumdums dumitru durdums giurgiu gri-gri grigris grimsir gru-gru grugrus gum-gum gumussu gurguri guruism igiugig igurusi iridium isidids isidium isidudu ittrium middiss midguts mirmiru mississ missits mistris mistrum mitrids mitrudu mitsugi mitsugu mitsuru mittimi mugguru murdris murdrum murmuri murmurs mussids mutisms mutists mutsumi muu-muu muumuus riddims riitiir rudists rum-dum rum-tum rumdums russism rustsum siddurs siguiri sim-sim simgrid simisti simiti simitis simsimi sirgiti sirmium sistrum sittids smiddum smugmug sssssss stisism strigid sttitus stu-iii studium sturgis suditi suiriri summiss summist summits surdism surmurd sursum- sust-it sustrum sutturu tim-tim timidus timimus timists timurid titmuss titumir tridium triduum trimmis trismus tristis tritium triurid triuris truisms trustid tsimmus tsugumi tsumugi tsurugi tsurumi tsutsui tuggurt tum-tum tumtums turdids turmits turrids tut-tut tuttuts umstrid umuduri uridium urumtsi utigurs