htruth huh-uh humhum hummum hummus humusy hursts hurth hurumu hushut huthur huthut hutsut mm-hmm muhuhu muhurr muhuru murmur murthy musmus mussum mustur mustyr muthur muttur mutuum muumuu mymymy myrrhs myrrhy myrtus mystus mythus rhythm rurutu russus rustum ruthyr rytmus shshsh shtums shursh shusht shutur smstrs smurry smushy smutty smyths strums strust strusy struth struts strutt stummy sturmy sturry sturts sturty stussy styrum stythy suhut summum summut sumuru sursum surtur surumu suryty sustyr susumu susurr syrmus sytrus thrums thrush thrust thrymr thryss thryst thtshr thurst thurty thymus thyrst thyrty trshts trusts trusty truths truthy trysts trysty trytry tumtum turmut turrum turssu turtur tururu turytt tussur tuttut uh-huh uhhuhs um-hum yumyum