-tree c-cor c-p-c c-pop c-tec ccccc ccell ccett ccrcl ccrel cctrl ceco- ceele ceelo ceere celco celer cell- celle cello celo- celte ceoce ceoor ceorl cepet cepot ceppo cerc- cerce cerco cerec cerer ceret cero- ceroc cerre cerro certe ceto- cette cleco cleer cleet clepe clept clerc clere clete cleto clett cloop cloor cloot clope clore clort clote co-co co-op cocc- cocce cocco coceo cocle cocol cocto coel- coelo coepe coete cole- colee colel coleo coler colet coll- colle collo colo- colop color colp- colpo colre cooee cooer coole coolo coope coopt coore coote copce copec copel coper cople coppe coppo copr- copre copro copte copto corce core- coree corel corer coro- corol corop corot corpe corre corrl corte corto cotel coter cotle cott- cotte cotto cpctc crece creel creep creer crele crell creo- creop creot crepe crept crete croce croco croll crooe crool croop croot cropc crope cropo crore crote crott crrel cteep ctree ctrlc ctrol cttee e-pro eccle ecole ecolo ecorp ecto- ector ectot eeeee eelco eeler eepee el-op elcor elcot elect eleet elele eleo- eleot ellel eller ellet elloe eloee elole eloor elope elore eloro elote elpee elper elrec eltro eorre epcot eperc epoll epopt epote ercol erect erept erere eroor erore eroto erpel errol error erte ertel erter etete etoll etool etoro etree ettel etter ettle l-pop lecce lecco lecop leece leeco leell leere leert lelep lelle lepel leper lepet lepo- lepor leppe lepre lept- lepto lerer leroc lerot letot letre lette letto loco- locro loler lollo lolol looce looer loopt loore loote loper lorel loreo lorer loret lorre lotec lotor lotte lotto ltcol ocelo ocllo ocoee ocote ocree octet octo- octol octor oeco- oelet oeppo oerel oerle oleo- olere olleo oller oltet oltre oo-er oocre ooooo opele opelt opepe opere oploo oplot opole oppel opper oppol opter opto- optot optto orcet orcop oreco orell oreo- orere orero orlec orlet orlop oroco oroer orret orter ortet ortoo otell otelo otere otero otoce otole otolo ototo otpor otter p-rep pcell pcept pcert pctct pecco pecel pecol peece peele peell peere peerl peert peete pelco pelee peler pelet pelle pello pelo- peloe pelor pelot peole pepco pepee pepel peple peppe pept- pepto perce perec perel perer peret perle perlo perot perre perro perte perto petco peter petr- petre petro pette petto pleco pleep pleet plelo pleo- plete ploce ploop ploot plopp plore plote plott po-po pocol pocop poele poete polco poler polet polle pollo poloe polop polte pooer poole poope poopo poore poort poote popco popel poper popet pople poplr popop poppe poppo porco porec porer poret porle poro- porro porte porto potco potec potee poter potoc potoo potop potor potpe potro potte potto prece preco prell prelp preop prepl prete preto proer prole proll prolo proor proot prop- prope propl propp propr propt prore prot- proto prtor pter- ptere ptero ptprc ptpre ptpro ptprr ptprt r-co- rcolo recce recco recep recet recpt rect- recte recto reece reepe reere relee relet rello relot relte repco repec repel repet reple repop repor repot reppe repro reprt rere- reree reret retee retel reter retop retro rette retto ro-ro rocco rocor roell roero roleo rollc rolle rollo rooer roole roope roore roote roper roppe rorer rotel roter rotle roto- rotol rotor rotot rotte rotto rprop rptor t-pop t-top tcell teele teell teepe telce telco tele- telec teleo telep teler tell- telle tello telo- telop teoco teolo teotl tepco tepee tepet tepor teppo terce terco teret teror terre terro tert- tetel teter tetle tetr- tetro tette tlell tlett tocco toco- toece toerr toeto toler tolet tolle tollo toloo tolor toole toolt toore topee topel toper topet toplo topo- topol topor topot toppo topto torce torel toreo toret torpe torpo torre torro torte torto totel toter totle toto- totoe totoo totop totte tpler tpole tprot treco treer treet trele trepp trept trere trete trett troco troee troll troop trop- trope tropo trott ttttt