heaste ehaste haeste aheste eahste aehste hesate ehsate hseate sheate eshate sehate hasete ahsete hsaete shaete ashete sahete eashte aeshte esahte seahte asehte saehte heatse ehatse haetse ahetse eahtse aehtse hetase ehtase htease thease ethase tehase hatese ahtese htaese thaese athese tahese eathse aethse etahse teahse atehse taehse hestae ehstae hsetae shetae eshtae sehtae hetsae ehtsae htesae thesae ethsae tehsae hsteae shteae htseae thseae stheae tsheae esthae sethae etshae teshae stehae tsehae hastee ahstee hsatee shatee ashtee sahtee hatsee ahtsee htasee thasee athsee tahsee hstaee shtaee htsaee thsaee sthaee tshaee asthee sathee atshee tashee stahee tsahee easthe aesthe esathe seathe asethe saethe eatshe aetshe etashe teashe ateshe taeshe estahe setahe etsahe tesahe steahe tseahe astehe satehe atsehe tasehe staehe tsaehe heaset ehaset haeset aheset eahset aehset hesaet ehsaet hseaet sheaet eshaet sehaet haseet ahseet hsaeet shaeet asheet saheet eashet aeshet esahet seahet asehet saehet heaest ehaest haeest aheest eahest aehest heeast eheast heeast eheast eehast eehast haeest aheest heaest ehaest aehest eahest eaehst aeehst eeahst eeahst aeehst eaehst heseat ehseat hseeat sheeat esheat seheat heesat ehesat heesat ehesat eehsat eehsat hseeat sheeat heseat ehseat seheat esheat esehat seehat eeshat eeshat seehat esehat haseet ahseet hsaeet shaeet asheet saheet haeset aheset heaset ehaset aehset eahset hseaet sheaet hesaet ehsaet sehaet eshaet asehet saehet aeshet eashet seahet esahet easeht aeseht esaeht seaeht aseeht saeeht eaesht aeesht eeasht eeasht aeesht eaesht eseaht seeaht eesaht eesaht seeaht eseaht aseeht saeeht aeseht easeht seaeht esaeht heates ehates haetes ahetes eahtes aehtes hetaes ehtaes hteaes theaes ethaes tehaes hatees ahtees htaees thaees athees tahees eathes aethes etahes teahes atehes taehes heaets ehaets haeets aheets eahets aehets heeats eheats heeats eheats eehats eehats haeets aheets heaets ehaets aehets eahets eaehts aeehts eeahts eeahts aeehts eaehts heteas ehteas hteeas theeas etheas teheas heetas ehetas heetas ehetas eehtas eehtas hteeas theeas heteas ehteas teheas etheas etehas teehas eethas eethas teehas etehas hatees ahtees htaees thaees athees tahees haetes ahetes heates ehates aehtes eahtes hteaes theaes hetaes ehtaes tehaes ethaes atehes taehes aethes eathes teahes etahes eatehs aetehs etaehs teaehs ateehs taeehs eaeths aeeths eeaths eeaths aeeths eaeths eteahs teeahs eetahs eetahs teeahs eteahs ateehs taeehs aetehs eatehs teaehs etaehs hestea ehstea hsetea shetea eshtea sehtea hetsea ehtsea htesea thesea ethsea tehsea hsteea shteea htseea thseea stheea tsheea esthea sethea etshea teshea stehea tsehea heseta ehseta hseeta sheeta esheta seheta heesta ehesta heesta ehesta eehsta eehsta hseeta sheeta heseta ehseta seheta esheta esehta seehta eeshta eeshta seehta esehta hetesa ehtesa hteesa theesa ethesa tehesa heetsa ehetsa heetsa ehetsa eehtsa eehtsa hteesa theesa hetesa ehtesa tehesa ethesa etehsa teehsa eethsa eethsa teehsa etehsa hsteea shteea htseea thseea stheea tsheea hsetea shetea hestea ehstea sehtea eshtea htesea thesea hetsea ehtsea tehsea ethsea stehea tsehea sethea esthea teshea etshea esteha seteha etseha teseha steeha tseeha esetha seetha eestha eestha seetha esetha etesha teesha eetsha eetsha teesha etesha steeha tseeha seteha esteha teseha etseha hastee ahstee hsatee shatee ashtee sahtee hatsee ahtsee htasee thasee athsee tahsee hstaee shtaee htsaee thsaee sthaee tshaee asthee sathee atshee tashee stahee tsahee hasete ahsete hsaete shaete ashete sahete haeste aheste heaste ehaste aehste eahste hseate sheate hesate ehsate sehate eshate asehte saehte aeshte eashte seahte esahte hatese ahtese htaese thaese athese tahese haetse ahetse heatse ehatse aehtse eahtse htease thease hetase ehtase tehase ethase atehse taehse aethse eathse teahse etahse hsteae shteae htseae thseae stheae tsheae hsetae shetae hestae ehstae sehtae eshtae htesae thesae hetsae ehtsae tehsae ethsae stehae tsehae sethae esthae teshae etshae astehe satehe atsehe tasehe staehe tsaehe asethe saethe aesthe easthe seathe esathe ateshe taeshe aetshe eatshe teashe etashe steahe tseahe setahe estahe tesahe etsahe easteh aesteh esateh seateh aseteh saeteh eatseh aetseh etaseh teaseh ateseh taeseh estaeh setaeh etsaeh tesaeh steaeh tseaeh asteeh sateeh atseeh taseeh staeeh tsaeeh easeth aeseth esaeth seaeth aseeth saeeth eaesth aeesth eeasth eeasth aeesth eaesth eseath seeath eesath eesath seeath eseath aseeth saeeth aeseth easeth seaeth esaeth eatesh aetesh etaesh teaesh ateesh taeesh eaetsh aeetsh eeatsh eeatsh aeetsh eaetsh eteash teeash eetash eetash teeash eteash ateesh taeesh aetesh eatesh teaesh etaesh esteah seteah etseah teseah steeah tseeah esetah seetah eestah eestah seetah esetah etesah teesah eetsah eetsah teesah etesah steeah tseeah seteah esteah teseah etseah asteeh sateeh atseeh taseeh staeeh tsaeeh aseteh saeteh aesteh easteh seateh esateh ateseh taeseh aetseh eatseh teaseh etaseh steaeh tseaeh setaeh estaeh tesaeh etsaeh
Note: these 'words' (valid or invalid) are all the permutations of the word heaste. These words are obtained by scrambling the letters in heaste.