cresta rcesta cersta ecrsta recsta ercsta crseta rcseta csreta screta rsceta srceta cesrta ecsrta cserta scerta escrta secrta rescta erscta rsecta srecta esrcta sercta cretsa rcetsa certsa ecrtsa rectsa erctsa crtesa rctesa ctresa tcresa rtcesa trcesa cetrsa ectrsa ctersa tcersa etcrsa tecrsa retcsa ertcsa rtecsa trecsa etrcsa tercsa crstea rcstea csrtea scrtea rsctea srctea crtsea rctsea ctrsea tcrsea rtcsea trcsea cstrea sctrea ctsrea tcsrea stcrea tscrea rstcea srtcea rtscea trscea strcea tsrcea cestra ecstra csetra scetra esctra sectra cetsra ectsra ctesra tcesra etcsra tecsra cstera sctera ctsera tcsera stcera tscera estcra setcra etscra tescra stecra tsecra restca erstca rsetca sretca esrtca sertca retsca ertsca rtesca tresca etrsca tersca rsteca srteca rtseca trseca streca tsreca estrca setrca etsrca tesrca sterca tserca cresat rcesat cersat ecrsat recsat ercsat crseat rcseat csreat screat rsceat srceat cesrat ecsrat cserat scerat escrat secrat rescat erscat rsecat srecat esrcat sercat creast rceast cerast ecrast recast ercast craest rcaest carest acrest racest arcest cearst ecarst caerst acerst eacrst aecrst reacst eracst raecst arecst earcst aercst crsaet rcsaet csraet scraet rscaet srcaet craset rcaset carset acrset racset arcset csaret scaret casret acsret sacret ascret rsacet sracet rascet arscet sarcet asrcet cesart ecsart cseart sceart escart secart ceasrt ecasrt caesrt acesrt eacsrt aecsrt csaert scaert casert acsert sacert ascert esacrt seacrt eascrt aescrt saecrt asecrt resact ersact rseact sreact esract seract reasct erasct raesct aresct earsct aersct rsaect sraect rasect arsect sarect asrect esarct searct easrct aesrct saerct aserct cretas rcetas certas ecrtas rectas erctas crteas rcteas ctreas tcreas rtceas trceas cetras ectras cteras tceras etcras tecras retcas ertcas rtecas trecas etrcas tercas creats rceats cerats ecrats recats ercats craets rcaets carets acrets racets arcets cearts ecarts caerts acerts eacrts aecrts reacts eracts raects arects earcts aercts crtaes rctaes ctraes tcraes rtcaes trcaes crates rcates cartes acrtes ractes arctes ctares tcares catres actres tacres atcres rtaces traces ratces artces tarces atrces cetars ectars ctears tcears etcars tecars ceatrs ecatrs caetrs acetrs eactrs aectrs ctaers tcaers caters acters tacers atcers etacrs teacrs eatcrs aetcrs taecrs atecrs retacs ertacs rteacs treacs etracs teracs reatcs eratcs raetcs aretcs eartcs aertcs rtaecs traecs ratecs artecs tarecs atrecs etarcs tearcs eatrcs aetrcs taercs atercs crstae rcstae csrtae scrtae rsctae srctae crtsae rctsae ctrsae tcrsae rtcsae trcsae cstrae sctrae ctsrae tcsrae stcrae tscrae rstcae srtcae rtscae trscae strcae tsrcae crsate rcsate csrate scrate rscate srcate craste rcaste carste acrste racste arcste csarte scarte casrte acsrte sacrte ascrte rsacte sracte rascte arscte sarcte asrcte crtase rctase ctrase tcrase rtcase trcase cratse rcatse cartse acrtse ractse arctse ctarse tcarse catrse actrse tacrse atcrse rtacse tracse ratcse artcse tarcse atrcse cstare sctare ctsare tcsare stcare tscare csatre scatre castre acstre sactre asctre ctasre tcasre catsre actsre tacsre atcsre stacre tsacre satcre astcre tascre atscre rstace srtace rtsace trsace strace tsrace rsatce sratce rastce arstce sartce asrtce rtasce trasce ratsce artsce tarsce atrsce starce tsarce satrce astrce tasrce atsrce cestar ecstar csetar scetar esctar sectar cetsar ectsar ctesar tcesar etcsar tecsar cstear sctear ctsear tcsear stcear tscear estcar setcar etscar tescar stecar tsecar cesatr ecsatr cseatr sceatr escatr secatr ceastr ecastr caestr acestr eacstr aecstr csaetr scaetr casetr acsetr sacetr ascetr esactr seactr easctr aesctr saectr asectr cetasr ectasr cteasr tceasr etcasr tecasr ceatsr ecatsr caetsr acetsr eactsr aectsr ctaesr tcaesr catesr actesr tacesr atcesr etacsr teacsr eatcsr aetcsr taecsr atecsr cstaer sctaer ctsaer tcsaer stcaer tscaer csater scater caster acster sacter ascter ctaser tcaser catser actser tacser atcser stacer tsacer satcer astcer tascer atscer estacr setacr etsacr tesacr steacr tseacr esatcr seatcr eastcr aestcr saetcr asetcr etascr teascr eatscr aetscr taescr atescr staecr tsaecr satecr astecr tasecr atsecr restac erstac rsetac sretac esrtac sertac retsac ertsac rtesac tresac etrsac tersac rsteac srteac rtseac trseac streac tsreac estrac setrac etsrac tesrac sterac tserac resatc ersatc rseatc sreatc esratc seratc reastc erastc raestc arestc earstc aerstc rsaetc sraetc rasetc arsetc saretc asretc esartc seartc easrtc aesrtc saertc asertc retasc ertasc rteasc treasc etrasc terasc reatsc eratsc raetsc aretsc eartsc aertsc rtaesc traesc ratesc artesc taresc atresc etarsc tearsc eatrsc aetrsc taersc atersc rstaec srtaec rtsaec trsaec straec tsraec rsatec sratec rastec arstec sartec asrtec rtasec trasec ratsec artsec tarsec atrsec starec tsarec satrec astrec tasrec atsrec estarc setarc etsarc tesarc stearc tsearc esatrc seatrc eastrc aestrc saetrc asetrc etasrc teasrc eatsrc aetsrc taesrc atesrc staerc tsaerc saterc asterc taserc atserc
Note: these 'words' (valid or invalid) are all the permutations of the word cresta. These words are obtained by scrambling the letters in cresta.