arecas raecas aercas earcas reacas eracas arceas raceas acreas careas rcaeas craeas aecras eacras aceras caeras ecaras cearas recaas ercaas rceaas creaas ecraas ceraas areacs raeacs aeracs earacs reaacs eraacs araecs raaecs aarecs aarecs raaecs araecs aearcs eaarcs aaercs aaercs eaarcs aearcs reaacs eraacs raeacs areacs earacs aeracs arcaes racaes acraes caraes rcaaes craaes araces raaces aarces aarces raaces araces acares caares aacres aacres caares acares rcaaes craaes racaes arcaes caraes acraes aecars eacars acears caears ecaars ceaars aeacrs eaacrs aaecrs aaecrs eaacrs aeacrs acaers caaers aacers aacers caaers acaers ecaars ceaars eacars aecars caears acears recaas ercaas rceaas creaas ecraas ceraas reacas eracas raecas arecas earcas aercas rcaeas craeas raceas arceas careas acreas ecaras cearas eacras aecras caeras aceras arecsa raecsa aercsa earcsa reacsa eracsa arcesa racesa acresa caresa rcaesa craesa aecrsa eacrsa acersa caersa ecarsa cearsa recasa ercasa rceasa creasa ecrasa cerasa aresca raesca aersca earsca reasca erasca arseca raseca asreca sareca rsaeca sraeca aesrca easrca aserca saerca esarca searca resaca ersaca rseaca sreaca esraca seraca arcsea racsea acrsea carsea rcasea crasea arscea rascea asrcea sarcea rsacea sracea acsrea casrea ascrea sacrea csarea scarea rcsaea crsaea rscaea srcaea csraea scraea aecsra eacsra acesra caesra ecasra ceasra aescra eascra asecra saecra esacra seacra acsera casera ascera sacera csaera scaera ecsara cesara escara secara cseara sceara recsaa ercsaa rcesaa cresaa ecrsaa cersaa rescaa erscaa rsecaa srecaa esrcaa sercaa rcseaa crseaa rsceaa srceaa csreaa screaa ecsraa cesraa escraa secraa cseraa sceraa areasc raeasc aerasc earasc reaasc eraasc araesc raaesc aaresc aaresc raaesc araesc aearsc eaarsc aaersc aaersc eaarsc aearsc reaasc eraasc raeasc areasc earasc aerasc aresac raesac aersac earsac reasac erasac arseac raseac asreac sareac rsaeac sraeac aesrac easrac aserac saerac esarac searac resaac ersaac rseaac sreaac esraac seraac arasec raasec aarsec aarsec raasec arasec arsaec rasaec asraec saraec rsaaec sraaec aasrec aasrec asarec saarec asarec saarec rasaec arsaec rsaaec sraaec asraec saraec aeasrc eaasrc aaesrc aaesrc eaasrc aeasrc aesarc easarc asearc saearc esaarc seaarc aaserc aaserc asaerc saaerc asaerc saaerc easarc aesarc esaarc seaarc asearc saearc reasac erasac raesac aresac earsac aersac resaac ersaac rseaac sreaac esraac seraac raseac arseac rsaeac sraeac asreac sareac easrac aesrac esarac searac aserac saerac arcase racase acrase carase rcaase craase aracse raacse aarcse aarcse raacse aracse acarse caarse aacrse aacrse caarse acarse rcaase craase racase arcase carase acrase arcsae racsae acrsae carsae rcasae crasae arscae rascae asrcae sarcae rsacae sracae acsrae casrae ascrae sacrae csarae scarae rcsaae crsaae rscaae srcaae csraae scraae arasce raasce aarsce aarsce raasce arasce arsace rasace asrace sarace rsaace sraace aasrce aasrce asarce saarce asarce saarce rasace arsace rsaace sraace asrace sarace acasre caasre aacsre aacsre caasre acasre acsare casare ascare sacare csaare scaare aascre aascre asacre saacre asacre saacre casare acsare csaare scaare ascare sacare rcasae crasae racsae arcsae carsae acrsae rcsaae crsaae rscaae srcaae csraae scraae rascae arscae rsacae sracae asrcae sarcae casrae acsrae csarae scarae ascrae sacrae aecasr eacasr aceasr caeasr ecaasr ceaasr aeacsr eaacsr aaecsr aaecsr eaacsr aeacsr acaesr caaesr aacesr aacesr caaesr acaesr ecaasr ceaasr eacasr aecasr caeasr aceasr aecsar eacsar acesar caesar ecasar ceasar aescar eascar asecar saecar esacar seacar acsear casear ascear sacear csaear scaear ecsaar cesaar escaar secaar cseaar sceaar aeascr eaascr aaescr aaescr eaascr aeascr aesacr easacr aseacr saeacr esaacr seaacr aasecr aasecr asaecr saaecr asaecr saaecr easacr aesacr esaacr seaacr aseacr saeacr acaser caaser aacser aacser caaser acaser acsaer casaer ascaer sacaer csaaer scaaer aascer aascer asacer saacer asacer saacer casaer acsaer csaaer scaaer ascaer sacaer ecasar ceasar eacsar aecsar caesar acesar ecsaar cesaar escaar secaar cseaar sceaar eascar aescar esacar seacar asecar saecar casear acsear csaear scaear ascear sacear recasa ercasa rceasa creasa ecrasa cerasa reacsa eracsa raecsa arecsa earcsa aercsa rcaesa craesa racesa arcesa caresa acresa ecarsa cearsa eacrsa aecrsa caersa acersa recsaa ercsaa rcesaa cresaa ecrsaa cersaa rescaa erscaa rsecaa srecaa esrcaa sercaa rcseaa crseaa rsceaa srceaa csreaa screaa ecsraa cesraa escraa secraa cseraa sceraa reasca erasca raesca aresca earsca aersca resaca ersaca rseaca sreaca esraca seraca raseca arseca rsaeca sraeca asreca sareca easrca aesrca esarca searca aserca saerca rcasea crasea racsea arcsea carsea acrsea rcsaea crsaea rscaea srcaea csraea scraea rascea arscea rsacea sracea asrcea sarcea casrea acsrea csarea scarea ascrea sacrea ecasra ceasra eacsra aecsra caesra acesra ecsara cesara escara secara cseara sceara eascra aescra esacra seacra asecra saecra casera acsera csaera scaera ascera sacera
Note: these 'words' (valid or invalid) are all the permutations of the word arecas. These words are obtained by scrambling the letters in arecas.