murlo murol murom muror murot murre murro murru murum murut muter mutet mutlu muto- mutum mutuo muuto o-r-b obbet obele obert obete obole obolo oboro obote oboue obout obreb obrom occur ocelo ocllo ocoee ocome ocote ocr-b ocree octet octo- octol octor ocul- oculo oeco- oelet oerel oerle oerme oerum oleo- olere oleum olleo oller ollur olme olmec olmet olmue olomu olotu olour oltet oltre olumu ombe- omber ombre omele omell omemo omero omlet ommel omore omoro omoto omout omule omulu oo-er oocre ooooo orbec orble orbom orbot orcet oreco orell oreo- orere orero orlec orlem orlet ormer ormet ormoc ormur orobe orobo oroco oroer orolu orome oromo orout orret orrum orter ortet ortoo orube oruce oruro orutu otcbb otell otelo otere otero otmer otoce otole otolo otome otomo ototo otour otter ottom ottur otulu oture oubut oueme ouert oullo oumer ouoro ource oure- ourol outer outre outro outto r-co- rcolo rebbe rebec rebel reber rebet rebol rebut recce recco recet rect- recte recto recue recur recut reece reeme reemo reere relee relet rello relmo relot relte relue remco remee remel remer remet remor remou remue reome rere- reree reret rerob rerum retee retel retem reter retro rette retto reuel reuer reuet reule reume reute rmutt ro-ro robbe robbo robec rober roble robo- robor robot robrt robte robur rocco rocor rocou roell roero roleo rollc rolle rollo rolmo rombe romel romeo romer romme rooer roole roome roomu roore roote rooue rorbu rorem rorer roteb rotel rotem roter rotle roto- rotol rotor rotot rotte rotto roubt rouer rouet roule roull roume roumm roure route routt rubee rubel ruber ruble rubor rucer rucul ruele ruell ruere ruete ruler rullo rumbe rumbo rumer rummo rummu rumor ruomu rurec ruter rutle rutte rutul ruule ruutu tbolt tbtbt tbutt tcell tcobb teber tebet tecmo tecom tecou tectb tecul tecum teele teell teeme teemu telce telco tele- telec telem teleo teler teleu tell- telle tello telo- tembe tembo tembu temel temoc temoe teoco teolo teome teotl terce terco terem teret tereu terme termo teror terre terro tert- teruo tetel teter tetle tetr- tetro tette teuto tlell tlett tllbr tlmer to-be tobbe tobel tober tobet tobol tobor tobot tobou tobre tocco toco- tocut toece toerr toeto tolbo toler tolet tolle tollo tolmo toloo tolor tolu- tombe tombo tombu tomec tomer tomle tomme tommo tomo- tomoe tomol tomom tomor tomte toobe toole toolt toome toore torbe torce torel toreo toret torme torob torre torro torte torto tortu torue torul totel totem toter totle toto- totoe totoo totte totum touel toule toull toure touro toute trboc treco treer treet trele treme trere trete trett treut troco troee troll trome tromm trott troue troul troum trout trubu truce truco truel truer trule trull trume truro trute ttttt tu-mo tuber tubo- tubou tubul tucet tuctu tucum tuell tuelt tuero tulce tulem tulet tulle tulor tulou tulum tumbe tumbo tumbu tummo tumor tumul tumut tuomo tuotu turbe turbo turbt turco turel turem turet turle turoc turot turre turro turtu turul turut tutee tutel tuteo tutle tutor tutte tutto tuuru u-cee ubble uber- ubobo ubolt ubume uccel uccle ucell ucero uclue ulcer ulcot ulemo ullet ullur ulmer ulmet ulrum ulteo ultre ululu uluru umbe- umbel umber umble umblu umbre umbro umeer umelo umeme umlet umore umour uouee urcel urelu ureme ureo- uroob urour urtel urter urtlu urubu uruce urucu urutu utebo uter- utero utmer utole utro- utror utrum utter uttur utube uturu ututo uuuuu