upstay pustay usptay suptay psutay sputay uptsay putsay utpsay tupsay ptusay tpusay ustpay sutpay utspay tuspay stupay tsupay pstuay sptuay ptsuay tpsuay stpuay tspuay upsaty pusaty uspaty supaty psuaty spuaty upasty puasty uapsty aupsty pausty apusty usapty suapty uaspty auspty saupty asupty psauty spauty pasuty apsuty saputy asputy uptasy putasy utpasy tupasy ptuasy tpuasy upatsy puatsy uaptsy auptsy pautsy aputsy utapsy tuapsy uatpsy autpsy taupsy atupsy ptausy tpausy patusy aptusy tapusy atpusy ustapy sutapy utsapy tusapy stuapy tsuapy usatpy suatpy uastpy austpy sautpy asutpy utaspy tuaspy uatspy autspy tauspy atuspy staupy tsaupy satupy astupy tasupy atsupy pstauy sptauy ptsauy tpsauy stpauy tspauy psatuy spatuy pastuy apstuy saptuy asptuy ptasuy tpasuy patsuy aptsuy tapsuy atpsuy stapuy tsapuy satpuy astpuy taspuy atspuy upstya pustya usptya suptya psutya sputya uptsya putsya utpsya tupsya ptusya tpusya ustpya sutpya utspya tuspya stupya tsupya pstuya sptuya ptsuya tpsuya stpuya tspuya upsyta pusyta uspyta supyta psuyta spuyta upysta puysta uypsta yupsta pyusta ypusta usypta suypta uyspta yuspta syupta ysupta psyuta spyuta pysuta ypsuta syputa ysputa uptysa putysa utpysa tupysa ptuysa tpuysa upytsa puytsa uyptsa yuptsa pyutsa yputsa utypsa tuypsa uytpsa yutpsa tyupsa ytupsa ptyusa tpyusa pytusa yptusa typusa ytpusa ustypa sutypa utsypa tusypa stuypa tsuypa usytpa suytpa uystpa yustpa syutpa ysutpa utyspa tuyspa uytspa yutspa tyuspa ytuspa styupa tsyupa sytupa ystupa tysupa ytsupa pstyua sptyua ptsyua tpsyua stpyua tspyua psytua spytua pystua ypstua syptua ysptua ptysua tpysua pytsua yptsua typsua ytpsua stypua tsypua sytpua ystpua tyspua ytspua upsayt pusayt uspayt supayt psuayt spuayt upasyt puasyt uapsyt aupsyt pausyt apusyt usapyt suapyt uaspyt auspyt saupyt asupyt psauyt spauyt pasuyt apsuyt sapuyt aspuyt upsyat pusyat uspyat supyat psuyat spuyat upysat puysat uypsat yupsat pyusat ypusat usypat suypat uyspat yuspat syupat ysupat psyuat spyuat pysuat ypsuat sypuat yspuat upayst puayst uapyst aupyst pauyst apuyst upyast puyast uypast yupast pyuast ypuast uaypst auypst uyapst yuapst ayupst yaupst payust apyust pyaust ypaust aypust yapust usaypt suaypt uasypt ausypt sauypt asuypt usyapt suyapt uysapt yusapt syuapt ysuapt uayspt auyspt uyaspt yuaspt ayuspt yauspt sayupt asyupt syaupt ysaupt aysupt yasupt psayut spayut pasyut apsyut sapyut aspyut psyaut spyaut pysaut ypsaut sypaut yspaut paysut apysut pyasut ypasut aypsut yapsut sayput asyput syaput ysaput aysput yasput uptays putays utpays tupays ptuays tpuays upatys puatys uaptys auptys pautys aputys utapys tuapys uatpys autpys taupys atupys ptauys tpauys patuys aptuys tapuys atpuys uptyas putyas utpyas tupyas ptuyas tpuyas upytas puytas uyptas yuptas pyutas yputas utypas tuypas uytpas yutpas tyupas ytupas ptyuas tpyuas pytuas yptuas typuas ytpuas upayts puayts uapyts aupyts pauyts apuyts upyats puyats uypats yupats pyuats ypuats uaypts auypts uyapts yuapts ayupts yaupts payuts apyuts pyauts ypauts ayputs yaputs utayps tuayps uatyps autyps tauyps atuyps utyaps tuyaps uytaps yutaps tyuaps ytuaps uaytps auytps uyatps yuatps ayutps yautps tayups atyups tyaups ytaups aytups yatups ptayus tpayus patyus aptyus tapyus atpyus ptyaus tpyaus pytaus yptaus typaus ytpaus paytus apytus pyatus ypatus ayptus yaptus taypus atypus tyapus ytapus aytpus yatpus ustayp sutayp utsayp tusayp stuayp tsuayp usatyp suatyp uastyp austyp sautyp asutyp utasyp tuasyp uatsyp autsyp tausyp atusyp stauyp tsauyp satuyp astuyp tasuyp atsuyp ustyap sutyap utsyap tusyap stuyap tsuyap usytap suytap uystap yustap syutap ysutap utysap tuysap uytsap yutsap tyusap ytusap styuap tsyuap sytuap ystuap tysuap ytsuap usaytp suaytp uasytp ausytp sauytp asuytp usyatp suyatp uysatp yusatp syuatp ysuatp uaystp auystp uyastp yuastp ayustp yaustp sayutp asyutp syautp ysautp aysutp yasutp utaysp tuaysp uatysp autysp tauysp atuysp utyasp tuyasp uytasp yutasp tyuasp ytuasp uaytsp auytsp uyatsp yuatsp ayutsp yautsp tayusp atyusp tyausp ytausp aytusp yatusp stayup tsayup satyup astyup tasyup atsyup styaup tsyaup sytaup ystaup tysaup ytsaup saytup asytup syatup ysatup aystup yastup taysup atysup tyasup ytasup aytsup yatsup pstayu sptayu ptsayu tpsayu stpayu tspayu psatyu spatyu pastyu apstyu saptyu asptyu ptasyu tpasyu patsyu aptsyu tapsyu atpsyu stapyu tsapyu satpyu astpyu taspyu atspyu pstyau sptyau ptsyau tpsyau stpyau tspyau psytau spytau pystau ypstau syptau ysptau ptysau tpysau pytsau yptsau typsau ytpsau stypau tsypau sytpau ystpau tyspau ytspau psaytu spaytu pasytu apsytu sapytu aspytu psyatu spyatu pysatu ypsatu sypatu yspatu paystu apystu pyastu ypastu aypstu yapstu sayptu asyptu syaptu ysaptu aysptu yasptu ptaysu tpaysu patysu aptysu tapysu atpysu ptyasu tpyasu pytasu yptasu typasu ytpasu paytsu apytsu pyatsu ypatsu ayptsu yaptsu taypsu atypsu tyapsu ytapsu aytpsu yatpsu staypu tsaypu satypu astypu tasypu atsypu styapu tsyapu sytapu ystapu tysapu ytsapu saytpu asytpu syatpu ysatpu aystpu yastpu tayspu atyspu tyaspu ytaspu aytspu yatspu
Note: these 'words' (valid or invalid) are all the permutations of the word upstay. These words are obtained by scrambling the letters in upstay.