treyfa rteyfa teryfa etryfa retyfa ertyfa tryefa rtyefa tyrefa ytrefa rytefa yrtefa teyrfa etyrfa tyerfa yterfa eytrfa yetrfa reytfa erytfa ryetfa yretfa eyrtfa yertfa trefya rtefya terfya etrfya retfya ertfya trfeya rtfeya tfreya ftreya rfteya frteya tefrya etfrya tferya fterya eftrya fetrya reftya erftya rfetya fretya efrtya fertya tryfea rtyfea tyrfea ytrfea rytfea yrtfea trfyea rtfyea tfryea ftryea rftyea frtyea tyfrea ytfrea tfyrea ftyrea yftrea fytrea ryftea yrftea rfytea frytea yfrtea fyrtea teyfra etyfra tyefra ytefra eytfra yetfra tefyra etfyra tfeyra fteyra eftyra fetyra tyfera ytfera tfyera ftyera yftera fytera eyftra yeftra efytra feytra yfetra fyetra reyfta eryfta ryefta yrefta eyrfta yerfta refyta erfyta rfeyta freyta efryta feryta ryfeta yrfeta rfyeta fryeta yfreta fyreta eyfrta yefrta efyrta feyrta yferta fyerta treyaf rteyaf teryaf etryaf retyaf ertyaf tryeaf rtyeaf tyreaf ytreaf ryteaf yrteaf teyraf etyraf tyeraf yteraf eytraf yetraf reytaf erytaf ryetaf yretaf eyrtaf yertaf treayf rteayf terayf etrayf retayf ertayf traeyf rtaeyf tareyf atreyf rateyf arteyf tearyf etaryf taeryf ateryf eatryf aetryf reatyf eratyf raetyf aretyf eartyf aertyf tryaef rtyaef tyraef ytraef rytaef yrtaef trayef rtayef taryef atryef ratyef artyef tyaref ytaref tayref atyref yatref aytref ryatef yratef raytef arytef yartef ayrtef teyarf etyarf tyearf ytearf eytarf yetarf teayrf etayrf taeyrf ateyrf eatyrf aetyrf tyaerf ytaerf tayerf atyerf yaterf ayterf eyatrf yeatrf eaytrf aeytrf yaetrf ayetrf reyatf eryatf ryeatf yreatf eyratf yeratf reaytf eraytf raeytf areytf earytf aerytf ryaetf yraetf rayetf aryetf yaretf ayretf eyartf yeartf eayrtf aeyrtf yaertf ayertf trefay rtefay terfay etrfay retfay ertfay trfeay rtfeay tfreay ftreay rfteay frteay tefray etfray tferay fteray eftray fetray reftay erftay rfetay fretay efrtay fertay treafy rteafy terafy etrafy retafy ertafy traefy rtaefy tarefy atrefy ratefy artefy tearfy etarfy taerfy aterfy eatrfy aetrfy reatfy eratfy raetfy aretfy eartfy aertfy trfaey rtfaey tfraey ftraey rftaey frtaey trafey rtafey tarfey atrfey ratfey artfey tfarey ftarey tafrey atfrey fatrey aftrey rfatey fratey raftey arftey fartey afrtey tefary etfary tfeary fteary eftary fetary teafry etafry taefry atefry eatfry aetfry tfaery ftaery tafery atfery fatery aftery efatry featry eaftry aeftry faetry afetry refaty erfaty rfeaty freaty efraty feraty reafty erafty raefty arefty earfty aerfty rfaety fraety rafety arfety farety afrety efarty fearty eafrty aefrty faerty aferty tryfae rtyfae tyrfae ytrfae rytfae yrtfae trfyae rtfyae tfryae ftryae rftyae frtyae tyfrae ytfrae tfyrae ftyrae yftrae fytrae ryftae yrftae rfytae frytae yfrtae fyrtae tryafe rtyafe tyrafe ytrafe rytafe yrtafe trayfe rtayfe taryfe atryfe ratyfe artyfe tyarfe ytarfe tayrfe atyrfe yatrfe aytrfe ryatfe yratfe raytfe arytfe yartfe ayrtfe trfaye rtfaye tfraye ftraye rftaye frtaye trafye rtafye tarfye atrfye ratfye artfye tfarye ftarye tafrye atfrye fatrye aftrye rfatye fratye raftye arftye fartye afrtye tyfare ytfare tfyare ftyare yftare fytare tyafre ytafre tayfre atyfre yatfre aytfre tfayre ftayre tafyre atfyre fatyre aftyre yfatre fyatre yaftre ayftre faytre afytre ryfate yrfate rfyate fryate yfrate fyrate ryafte yrafte rayfte aryfte yarfte ayrfte rfayte frayte rafyte arfyte faryte afryte yfarte fyarte yafrte ayfrte fayrte afyrte teyfar etyfar tyefar ytefar eytfar yetfar tefyar etfyar tfeyar fteyar eftyar fetyar tyfear ytfear tfyear ftyear yftear fytear eyftar yeftar efytar feytar yfetar fyetar teyafr etyafr tyeafr yteafr eytafr yetafr teayfr etayfr taeyfr ateyfr eatyfr aetyfr tyaefr ytaefr tayefr atyefr yatefr aytefr eyatfr yeatfr eaytfr aeytfr yaetfr ayetfr tefayr etfayr tfeayr fteayr eftayr fetayr teafyr etafyr taefyr atefyr eatfyr aetfyr tfaeyr ftaeyr tafeyr atfeyr fateyr afteyr efatyr featyr eaftyr aeftyr faetyr afetyr tyfaer ytfaer tfyaer ftyaer yftaer fytaer tyafer ytafer tayfer atyfer yatfer aytfer tfayer ftayer tafyer atfyer fatyer aftyer yfater fyater yafter ayfter fayter afyter eyfatr yefatr efyatr feyatr yfeatr fyeatr eyaftr yeaftr eayftr aeyftr yaeftr ayeftr efaytr feaytr eafytr aefytr faeytr afeytr yfaetr fyaetr yafetr ayfetr fayetr afyetr reyfat eryfat ryefat yrefat eyrfat yerfat refyat erfyat rfeyat freyat efryat feryat ryfeat yrfeat rfyeat fryeat yfreat fyreat eyfrat yefrat efyrat feyrat yferat fyerat reyaft eryaft ryeaft yreaft eyraft yeraft reayft erayft raeyft areyft earyft aeryft ryaeft yraeft rayeft aryeft yareft ayreft eyarft yearft eayrft aeyrft yaerft ayerft refayt erfayt rfeayt freayt efrayt ferayt reafyt erafyt raefyt arefyt earfyt aerfyt rfaeyt fraeyt rafeyt arfeyt fareyt afreyt efaryt fearyt eafryt aefryt faeryt aferyt ryfaet yrfaet rfyaet fryaet yfraet fyraet ryafet yrafet rayfet aryfet yarfet ayrfet rfayet frayet rafyet arfyet faryet afryet yfaret fyaret yafret ayfret fayret afyret eyfart yefart efyart feyart yfeart fyeart eyafrt yeafrt eayfrt aeyfrt yaefrt ayefrt efayrt feayrt eafyrt aefyrt faeyrt afeyrt yfaert fyaert yafert ayfert fayert afyert
Note: these 'words' (valid or invalid) are all the permutations of the word treyfa. These words are obtained by scrambling the letters in treyfa.