c-cor ccccc co-co cocc- cocco cocom cocow cocto cocum cocur comco commo commr comot comu- corm- cormo coro- corot corto corum cott- cotto cottu couco court couru couto coutu croco cromo croom croot crott croum crout cruor ctcum cumm- cumo- cuoco cuomo curro curto cutco cutcu cutro cutto mccoo mmccc mmmcc mmmmm mocco mocow momot mooro mooto mootw mormo moroc moror morou morow morro morum morut moto- motoc motor motru motto mottu mrmom mrorr mt-tc mt-tm mt-tr mt-tt mt-tw mtoto muco- mucor mucro muctc mucum mucur mumcu mummu murom muror murot murow murro murru murum murut muto- mutum mutuo muuto occur octo- octor omoro omoto omout ooooo ormoc ormur oroco oromo orout orrow orrum ortoo ortwo oruro orutu otomo ototo otour ottom ottur ouoro outro outto r-co- rmutt ro-ro rocco rocor rocou roomu roto- rotor rotot rotto roumm routt rowto rummo rummu rumor ruomu ruutu rwmor tocco toco- tocut tommo tomo- tomom tomor torow torro torto tortu toto- totoo totum totwo touro towoo troco tromm trott troum trout trouw truco truro ttttt tu-mo tuctu tucum tummo tumor tumut tuomo tuotu turco turoc turot turow turro turtu turut tutor tutow tutto tuuru twoor twort twoto umour urour urowo urucu urutu utro- utror utrum uttur uturu ututo uuuuu wmccm worow wotou wourt wowow wroot wrout wrutt wwwww