-tree c-cor c-dot c-tec ccccc ccett cduce ceco- ceddo ceded ceder cedor cedr- cedre cedro ceede ceedo ceere ceoce ceoor cerc- cerce cerco cerdo cerec cered cerer ceret cerke cero- ceroc cerou cerre cerro certe ceto- cette co-co co-ed cocc- cocce cocco coceo cocke cockt cocto cocur codco codde codec coded coder codo codru coete coeur coked coker coket cokk- cokot coode cooed cooee cooer cooke cookt coord coore coote corce corde core- cored coree corer coreu corke coro- corod corot corre corte corto coted coter cott- cotte cotto cottu couco coude couer courd coure court couru couto coutu crece crede credo creed creek creer creke creo- creot crete cretu creu- creue crked croce crock croco crode crodo croke crokt crood crooe crook croot crore crote crott croud crouk crout cruce cruck crude crudo cruet cruke cruor crure ctree cttee cucuk cudde cudot cuero cueto cuker cukor cuoco cuore curce cured curer curet curre curro curto cutco cutcu cutee cuter cutro cutto d-cru d-dot d-rod d-rok dc-uk dcore ddddd ddeok ddruk decet deckc decke decko decor decur dedde dedee deder dedur dedut deece deede deere deked dekko deore deoro derce derde dered derek derke dero- derre derro derue deruk detek deter detoo detre dette detuo detur deuce deure deut- deuto do-do doced docer docet dodec dodoo dodro doerr dokdo doket dokuo dooce doodo dooke dooku doore doote doout dorce dordt dored doree doret dorke dorot dorre dorte dorud doruk doted doter dotoo dotto douce douck doude douer douke doure douro doute drdre dreck dredd drede dreed drere drock drode droke drood drook drote drott droue drouk drout druce drude dtour du-ku ducke ducor duddo duded dudek duder dudok dudou duduc duduk duere duerr duete dueto duett duked dukeu dukku dukot dured duree durer duret duroc durok durre durte durtu dutte e-dee e-otd ecker ecord ecto- ector ectot edder eddoe eddre edeko edeo- edere edocr edoor edott edred edu-k educe educo educt eecke eeeee eerde ekeko ekker ektor ekuku ekuru eorre erdec erdek erdoc erdor erdre erdut erect erede erere erkec erkko erkoc erode erodr eroor erore eroto erred error errtu erte erter eruct eruke eteke etete etoko etoro etour etree etrek etter etude eturu eucre euro- eurre k-dee k-ute kecer kedco kedde keder kedre kedro keere kekec keked kerek keret kerre kertu ketek keter keto- ketou kette ketto ko-ko kocek kocer kocke kodok kodre kodur koeru koker koket kokko kokor kokot kokou kokre kokur kokut koord kooru korck korec korek korke korku koror korro korte kortu korue koruk kotor kotto kottu kotur koude koudo kouer koure kouto kre-o kreek kreke kreo- krete kreuk krock krodo kroke kroot krout krtok kruto kucer kucuk kudde kudou kudur kukec kukko kukok kukur kurek kurku kurre kurte kuruc kurud kuruk kutte kuttu kutur occur ocker ockro ocoee ocote ocree octet octo- octor odder oddur odeco odeto odeur odore odour odudu odure oduro oeco- okeke okere oketo okker okkur okoc okoro okrut okuku okuru oo-er oocre ooooo orcet order ordet ordoc ordre ordro orduc oreck oreco oredo oreed oreo- orere orero orkut oroco orodo oroer oroke orout orret orter ortet ortok ortoo oruce oruku oruro orutu otere otero otoce otoku ototo otour otrok otter ottur otuke oture ouder ouedo ouert ouoro ource ourde oure- outdo outed outer outre outro outto r-co- recce recco reced recet recke rect- recte recto recue recur recut redco redde reder redoc redor redot redur reece reede reere rekke reord rerde rere- reree reret reted retee reter retro rette retto reuer reuet reute ro-ro rocco rocke rocko rocor rocou rodde roded rodeo roder rodoc rodok rodor roero rokee roker roket rokke rokkk rokot rokto roode roodu rooer rooke roore roote rooue rorer rorke roted roter rotko roto- rotor rotot rotte rotto roude rouer rouet rouke rouko roure route routt rt-rk rucer ruder rudkk rudok ruede ruere ruete rukke rurde rurec ruter rutte ruutu tcutk tecou teder teeko teerd teket tekke tekko teoco teodo terce terco terek teret tereu terok teror terre terro tert- teruo teter tetr- tetro tette teuto to-do tocco toco- tocut toder todok todor toece toerr toeto tokdo toked toker tokke tokko toko- tokod tokor tokuo tokur toode tooed tooke toord toore torce torde tordu tored toreo toret torke torok torre torro torte torto tortu torud torue toted toter toto- totoe totok totoo totte touck touke tourd toure touro toute treck treco treed treer treet trere trete trett treut trock troco trode troee troke trood trott troue trout truce truck truco trude trudo trued truer truke truro trute tteok ttttt tucet tucke tuctu tuder tudor tudou tudre tudur tuero tukur tuotu turck turco turek turet turko turku turoc turok turot turre turro turtu turut tutee tuteo tutku tutor tutte tutto tuuru u-cee uceku ucero ucode udder udert ukcdr ukeke ukert ukodo uouee urdee urduk uredo ureo- urker urkut urour urter uruce urucu urutu uter- utero utro- utror utter uttur uturu ututo uuork uuuuu