-tree c-cor c-tec ccccc ccell ccett ccrcl ccrel cctrl ceco- ceele ceelo ceere celco celer cell- celle cello celo- celte ceoce ceoor ceorl cerc- cerce cerco cerec cerer ceret cero- ceroc cerre cerro certe ceto- cette cleco cleer cleet clerc clere clete cleto clett clewe cloor cloot clore clort clote clowe clowr clowt co-co cocc- cocce cocco coceo cocle cocol cocow cocto coel- coelo coete cole- colee colel coleo coler colet coll- colle collo colo- color colre cooee cooer coole coolo coore coote corce core- coree corel corer coro- corol corot corre corrl corte corto cotel coter cotle cott- cotte cotto cowee cowel cower cowle cowre crece creel creer crele crell creo- creot crete crewe croce croco croll crooe crool croot crore crote crott crowe crowl crrel crwet ctree ctrlc ctrol cttee eccle ecole ecolo ecto- ector ectot eeeee eelco eeler elcor elcot elect eleet elele eleo- eleot ellel eller ellet elloe eloee elole eloor elore eloro elote elrec eltro elwro eorre ercol erect erere erewe eroor erore eroto errew errol error erte ertel erter etete etoll etool etoro etree ettel etter ettle etwee ewell ewert ewloe ewlow lecce lecco leece leeco leell leere leert lelle lerer leroc lerot letot letow letre lette letto lewce lewer lewre lewte loco- locro loewe loler lollo lolol looce looer loore loote loowe lorel loreo lorer loret lorre lotec lotor lotow lotte lotto lowce lower lowre lowte ltcol lwewo ocelo ocllo ocoee ocote ocree octet octo- octol octor oeco- oelet oerel oerle oleo- olere olleo oller oltet oltre oo-er oocre ooooo oowee orcet oreco orell oreo- orere orero orlec orlet orlow oroco oroer orret orrow orter ortet ortoo ortwo orwoe otell otelo otere otero otoce otole otolo ototo otter oweto owler owlet owre- owte- owtte r-co- rcolo recce recco recet rect- recte recto reece reere reewe relee relet rello relot relte reowe rere- reree reret rerow retee retel reter retew retow retro rette retto rewel rewer rewet rewle rewll ro-ro rocco rocor roell roero roewe roleo rollc rolle rollo rooer roole roore roote rorer rotel roter rotle roto- rotol rotor rotot rotte rotto rowce rowel rower rowet rowle rowte rowto rowwe tcell teele teell telce telco tele- telec teleo teler tell- telle tello telo- telwe teoco teolo teotl terce terco teret teror terre terro tert- tetel teter tetle tetr- tetro tette tewel tewer tewet tewor tlell tlett tocco toco- toece toerr toeto toetw toler tolet tolle tollo toloo tolor tolow toole toolt toore torce torel toreo toret torow torre torro torte torto totel toter totle toto- totoe totoo totte totwo towee towel tower towle towoo towre treco treer treet trele trere trete trett trewe troco troee troll trott trowe trowl trwce ttttt tweel tweer tweet twell twelt twere two-l twoer twoll twoor twort twote twoto weele weere weero weert weete welew welle welte weole weorc weore weote weowe werce were- werel werew werle werre werte weter wetoo wette wetto wlewo woele woeto wolle wolte wooer woore woote woree worle worow worre wotte wowee wowow wowte wrele wrete wrett wroot wrote wrowe wwwww