spelts pselts seplts esplts peslts epslts splets pslets slpets lspets plsets lpsets selpts eslpts slepts lsepts elspts lespts pelsts eplsts plests lpests elpsts lepsts spetls psetls septls esptls pestls epstls sptels pstels stpels tspels ptsels tpsels setpls estpls stepls tsepls etspls tespls petsls eptsls ptesls tpesls etpsls tepsls spltes psltes slptes lsptes plstes lpstes sptles pstles stples tsples ptsles tpsles sltpes lstpes stlpes tslpes ltspes tlspes pltses lptses ptlses tplses ltpses tlpses seltps esltps sletps lsetps elstps lestps setlps estlps stelps tselps etslps teslps slteps lsteps stleps tsleps ltseps tlseps eltsps letsps etlsps telsps ltesps tlesps peltss epltss pletss lpetss elptss leptss petlss eptlss ptelss tpelss etplss teplss pltess lptess ptless tpless ltpess tlpess eltpss letpss etlpss telpss ltepss tlepss spelst pselst seplst esplst peslst epslst splest pslest slpest lspest plsest lpsest selpst eslpst slepst lsepst elspst lespst pelsst eplsst plesst lpesst elpsst lepsst speslt pseslt sepslt espslt pesslt epsslt spselt psselt sspelt sspelt psselt spselt sesplt essplt sseplt sseplt essplt sesplt pesslt epsslt pseslt speslt espslt sepslt splset pslset slpset lspset plsset lpsset spslet psslet ssplet ssplet psslet spslet slspet lsspet sslpet sslpet lsspet slspet plsset lpsset pslset splset lspset slpset selspt eslspt slespt lsespt elsspt lesspt seslpt esslpt sselpt sselpt esslpt seslpt slsept lssept sslept sslept lssept slsept elsspt lesspt eslspt selspt lsespt slespt pelsst eplsst plesst lpesst elpsst lepsst peslst epslst pselst spelst esplst seplst plsest lpsest pslest splest lspest slpest elspst lespst eslpst selpst lsepst slepst spetsl psetsl septsl esptsl pestsl epstsl sptesl pstesl stpesl tspesl ptsesl tpsesl setpsl estpsl stepsl tsepsl etspsl tespsl petssl eptssl ptessl tpessl etpssl tepssl spestl psestl sepstl espstl pesstl epsstl spsetl pssetl sspetl sspetl pssetl spsetl sesptl essptl sseptl sseptl essptl sesptl pesstl epsstl psestl spestl espstl sepstl sptsel pstsel stpsel tspsel ptssel tpssel spstel psstel ssptel ssptel psstel spstel stspel tsspel sstpel sstpel tsspel stspel ptssel tpssel pstsel sptsel tspsel stpsel setspl estspl stespl tsespl etsspl tesspl sestpl esstpl ssetpl ssetpl esstpl sestpl stsepl tssepl sstepl sstepl tssepl stsepl etsspl tesspl estspl setspl tsespl stespl petssl eptssl ptessl tpessl etpssl tepssl pestsl epstsl psetsl spetsl esptsl septsl ptsesl tpsesl pstesl sptesl tspesl stpesl etspsl tespsl estpsl setpsl tsepsl stepsl spltse psltse slptse lsptse plstse lpstse sptlse pstlse stplse tsplse ptslse tpslse sltpse lstpse stlpse tslpse ltspse tlspse pltsse lptsse ptlsse tplsse ltpsse tlpsse splste pslste slpste lspste plsste lpsste spslte psslte ssplte ssplte psslte spslte slspte lsspte sslpte sslpte lsspte slspte plsste lpsste pslste splste lspste slpste sptsle pstsle stpsle tspsle ptssle tpssle spstle psstle ssptle ssptle psstle spstle stsple tssple sstple sstple tssple stsple ptssle tpssle pstsle sptsle tspsle stpsle sltspe lstspe stlspe tslspe ltsspe tlsspe slstpe lsstpe ssltpe ssltpe lsstpe slstpe stslpe tsslpe sstlpe sstlpe tsslpe stslpe ltsspe tlsspe lstspe sltspe tslspe stlspe pltsse lptsse ptlsse tplsse ltpsse tlpsse plstse lpstse psltse spltse lsptse slptse ptslse tpslse pstlse sptlse tsplse stplse ltspse tlspse lstpse sltpse tslpse stlpse seltsp esltsp sletsp lsetsp elstsp lestsp setlsp estlsp stelsp tselsp etslsp teslsp sltesp lstesp stlesp tslesp ltsesp tlsesp eltssp letssp etlssp telssp ltessp tlessp selstp eslstp slestp lsestp elsstp lesstp sesltp essltp sseltp sseltp essltp sesltp slsetp lssetp ssletp ssletp lssetp slsetp elsstp lesstp eslstp selstp lsestp slestp setslp estslp steslp tseslp etsslp tesslp sestlp esstlp ssetlp ssetlp esstlp sestlp stselp tsselp sstelp sstelp tsselp stselp etsslp tesslp estslp setslp tseslp steslp sltsep lstsep stlsep tslsep ltssep tlssep slstep lsstep ssltep ssltep lsstep slstep stslep tsslep sstlep sstlep tsslep stslep ltssep tlssep lstsep sltsep tslsep stlsep eltssp letssp etlssp telssp ltessp tlessp elstsp lestsp esltsp seltsp lsetsp sletsp etslsp teslsp estlsp setlsp tselsp stelsp ltsesp tlsesp lstesp sltesp tslesp stlesp peltss epltss pletss lpetss elptss leptss petlss eptlss ptelss tpelss etplss teplss pltess lptess ptless tpless ltpess tlpess eltpss letpss etlpss telpss ltepss tlepss pelsts eplsts plests lpests elpsts lepsts peslts epslts pselts spelts esplts seplts plsets lpsets pslets splets lspets slpets elspts lespts eslpts selpts lsepts slepts petsls eptsls ptesls tpesls etpsls tepsls pestls epstls psetls spetls esptls septls ptsels tpsels pstels sptels tspels stpels etspls tespls estpls setpls tsepls stepls pltses lptses ptlses tplses ltpses tlpses plstes lpstes psltes spltes lsptes slptes ptsles tpsles pstles sptles tsples stples ltspes tlspes lstpes sltpes tslpes stlpes eltsps letsps etlsps telsps ltesps tlesps elstps lestps esltps seltps lsetps sletps etslps teslps estlps setlps tselps stelps ltseps tlseps lsteps slteps tsleps stleps
Note: these 'words' (valid or invalid) are all the permutations of the word spelts. These words are obtained by scrambling the letters in spelts.