ratels artels rtaels traels atrels tarels raetls aretls reatls eratls aertls eartls rteals treals retals ertals terals etrals aterls taerls aetrls eatrls tearls etarls ratles artles rtales trales atrles tarles raltes arltes rlates lrates alrtes lartes rtlaes trlaes rltaes lrtaes tlraes ltraes atlres talres altres latres tlares ltares raelts arelts realts eralts aerlts earlts ralets arlets rlaets lraets alrets larets relats erlats rleats lreats elrats lerats aelrts ealrts alerts laerts elarts learts rtelas trelas retlas ertlas terlas etrlas rtleas trleas rlteas lrteas tlreas ltreas reltas erltas rletas lretas elrtas lertas telras etlras tleras lteras eltras letras atelrs taelrs aetlrs eatlrs tealrs etalrs atlers talers alters laters tlaers ltaers aeltrs ealtrs aletrs laetrs elatrs leatrs telars etlars tlears ltears eltars letars ratesl artesl rtaesl traesl atresl taresl raetsl aretsl reatsl eratsl aertsl eartsl rteasl treasl retasl ertasl terasl etrasl atersl taersl aetrsl eatrsl tearsl etarsl ratsel artsel rtasel trasel atrsel tarsel rastel arstel rsatel sratel asrtel sartel rtsael trsael rstael srtael tsrael strael atsrel tasrel astrel satrel tsarel starel raestl arestl reastl erastl aerstl earstl rasetl arsetl rsaetl sraetl asretl saretl resatl ersatl rseatl sreatl esratl seratl aesrtl easrtl asertl saertl esartl seartl rtesal tresal retsal ertsal tersal etrsal rtseal trseal rsteal srteal tsreal streal restal erstal rsetal sretal esrtal sertal tesral etsral tseral steral estral setral atesrl taesrl aetsrl eatsrl teasrl etasrl atserl taserl asterl saterl tsaerl staerl aestrl eastrl asetrl saetrl esatrl seatrl tesarl etsarl tsearl stearl estarl setarl ratlse artlse rtalse tralse atrlse tarlse raltse arltse rlatse lratse alrtse lartse rtlase trlase rltase lrtase tlrase ltrase atlrse talrse altrse latrse tlarse ltarse ratsle artsle rtasle trasle atrsle tarsle rastle arstle rsatle sratle asrtle sartle rtsale trsale rstale srtale tsrale strale atsrle tasrle astrle satrle tsarle starle ralste arlste rlaste lraste alrste larste raslte arslte rsalte sralte asrlte sarlte rlsate lrsate rslate srlate lsrate slrate alsrte lasrte aslrte salrte lsarte slarte rtlsae trlsae rltsae lrtsae tlrsae ltrsae rtslae trslae rstlae srtlae tsrlae strlae rlstae lrstae rsltae srltae lsrtae slrtae tlsrae ltsrae tslrae stlrae lstrae sltrae atlsre talsre altsre latsre tlasre ltasre atslre taslre astlre satlre tsalre stalre alstre lastre asltre saltre lsatre slatre tlsare ltsare tslare stlare lstare sltare raelst arelst realst eralst aerlst earlst ralest arlest rlaest lraest alrest larest relast erlast rleast lreast elrast lerast aelrst ealrst alerst laerst elarst learst raeslt areslt reaslt eraslt aerslt earslt raselt arselt rsaelt sraelt asrelt sarelt resalt ersalt rsealt srealt esralt seralt aesrlt easrlt aserlt saerlt esarlt searlt ralset arlset rlaset lraset alrset larset raslet arslet rsalet sralet asrlet sarlet rlsaet lrsaet rslaet srlaet lsraet slraet alsret lasret aslret salret lsaret slaret relsat erlsat rlesat lresat elrsat lersat reslat erslat rselat srelat esrlat serlat rlseat lrseat rsleat srleat lsreat slreat elsrat lesrat eslrat selrat lserat slerat aelsrt ealsrt alesrt laesrt elasrt leasrt aeslrt easlrt aselrt saelrt esalrt sealrt alsert lasert aslert salert lsaert slaert elsart lesart eslart selart lseart sleart rtelsa trelsa retlsa ertlsa terlsa etrlsa rtlesa trlesa rltesa lrtesa tlresa ltresa reltsa erltsa rletsa lretsa elrtsa lertsa telrsa etlrsa tlersa ltersa eltrsa letrsa rtesla tresla retsla ertsla tersla etrsla rtsela trsela rstela srtela tsrela strela restla erstla rsetla sretla esrtla sertla tesrla etsrla tserla sterla estrla setrla rtlsea trlsea rltsea lrtsea tlrsea ltrsea rtslea trslea rstlea srtlea tsrlea strlea rlstea lrstea rsltea srltea lsrtea slrtea tlsrea ltsrea tslrea stlrea lstrea sltrea relsta erlsta rlesta lresta elrsta lersta reslta erslta rselta srelta esrlta serlta rlseta lrseta rsleta srleta lsreta slreta elsrta lesrta eslrta selrta lserta slerta telsra etlsra tlesra ltesra eltsra letsra teslra etslra tselra stelra estlra setlra tlsera ltsera tslera stlera lstera sltera elstra lestra esltra seltra lsetra sletra atelsr taelsr aetlsr eatlsr tealsr etalsr atlesr talesr altesr latesr tlaesr ltaesr aeltsr ealtsr aletsr laetsr elatsr leatsr telasr etlasr tleasr lteasr eltasr letasr ateslr taeslr aetslr eatslr teaslr etaslr atselr taselr astelr satelr tsaelr staelr aestlr eastlr asetlr saetlr esatlr seatlr tesalr etsalr tsealr stealr estalr setalr atlser talser altser latser tlaser ltaser atsler tasler astler satler tsaler staler alster laster aslter salter lsater slater tlsaer ltsaer tslaer stlaer lstaer sltaer aelstr ealstr alestr laestr elastr leastr aesltr easltr aseltr saeltr esaltr sealtr alsetr lasetr asletr saletr lsaetr slaetr elsatr lesatr eslatr selatr lseatr sleatr telsar etlsar tlesar ltesar eltsar letsar teslar etslar tselar stelar estlar setlar tlsear ltsear tslear stlear lstear sltear elstar lestar esltar seltar lsetar sletar
Note: these 'words' (valid or invalid) are all the permutations of the word ratels. These words are obtained by scrambling the letters in ratels.