-tree eeeee eeler eleet elele eleo- eleot ellel eller ellet elloe eloee elole eloor elore eloro elote eltro eorre erere eroor erore eroto errol error erte ertel erter etete etext etoll etool etoro etree ettel etter ettle exert exlex exloo exore exort extel exter extol extre extro leell leere leert lelex lelle lerer lerot letot letre lette letto lexer lexoo lexxe lo-ex loler lollo lolol looer loore loote lorel loreo lorer loret lorre lotor lotte lotto loxo- oelet oerel oerle oleo- olere olleo oller oltet oltre oo-er ooooo orell oreo- orere orero orexo orlet oroer orret orter ortet ortoo otell otelo otere otero otole otolo ototo otter oxole oxter reere relee relet relex rello relot relte reorx rere- reree reret retee retel reter retex retox retro rette retto rexel rexer ro-ro roell roero roleo rolex rolle rollo rooer roole roore roote rorer rotel roter rotle roto- rotol rotor rotot rotox rotte rotto roxle rtext t-rex teele teell tele- teleo teler telex tell- telle tello telo- teolo teotl teret terex teror terre terro tert- tetel teter tetex tetle tetr- tetro tette texel texor texte tlell tlett toerr toeto toler tolet tolex tolle tollo toloo tolor tolox toole toolt toore torel toreo toret torre torro torte torto torxe totel toter totex totle toto- totoe totoo totte toxo- toxol treer treet trele trere trete trett troee troll trott ttttt xero- xerox xerte xetex xexex xootr xorro xotox xoxox xtext xtort xtree