grindy rgindy girndy igrndy rigndy irgndy grnidy rgnidy gnridy ngridy rngidy nrgidy ginrdy ignrdy gnirdy ngirdy ingrdy nigrdy ringdy irngdy rnigdy nrigdy inrgdy nirgdy gridny rgidny girdny igrdny rigdny irgdny grdiny rgdiny gdriny dgriny rdginy drginy gidrny igdrny gdirny dgirny idgrny digrny ridgny irdgny rdigny drigny idrgny dirgny grndiy rgndiy gnrdiy ngrdiy rngdiy nrgdiy grdniy rgdniy gdrniy dgrniy rdgniy drgniy gndriy ngdriy gdnriy dgnriy ndgriy dngriy rndgiy nrdgiy rdngiy drngiy ndrgiy dnrgiy gindry igndry gnidry ngidry ingdry nigdry gidnry igdnry gdinry dginry idgnry dignry gndiry ngdiry gdniry dgniry ndgiry dngiry indgry nidgry idngry dingry ndigry dnigry rindgy irndgy rnidgy nridgy inrdgy nirdgy ridngy irdngy rdingy dringy idrngy dirngy rndigy nrdigy rdnigy drnigy ndrigy dnrigy indrgy nidrgy idnrgy dinrgy ndirgy dnirgy grinyd rginyd girnyd igrnyd rignyd irgnyd grniyd rgniyd gnriyd ngriyd rngiyd nrgiyd ginryd ignryd gniryd ngiryd ingryd nigryd ringyd irngyd rnigyd nrigyd inrgyd nirgyd griynd rgiynd girynd igrynd rigynd irgynd gryind rgyind gyrind ygrind rygind yrgind giyrnd igyrnd gyirnd ygirnd iygrnd yigrnd riygnd irygnd ryignd yrignd iyrgnd yirgnd grnyid rgnyid gnryid ngryid rngyid nrgyid grynid rgynid gyrnid ygrnid rygnid yrgnid gnyrid ngyrid gynrid ygnrid nygrid yngrid rnygid nrygid ryngid yrngid nyrgid ynrgid ginyrd ignyrd gniyrd ngiyrd ingyrd nigyrd giynrd igynrd gyinrd yginrd iygnrd yignrd gnyird ngyird gynird ygnird nygird yngird inygrd niygrd iyngrd yingrd nyigrd ynigrd rinygd irnygd rniygd nriygd inrygd nirygd riyngd iryngd ryingd yringd iyrngd yirngd rnyigd nryigd rynigd yrnigd nyrigd ynrigd inyrgd niyrgd iynrgd yinrgd nyirgd ynirgd gridyn rgidyn girdyn igrdyn rigdyn irgdyn grdiyn rgdiyn gdriyn dgriyn rdgiyn drgiyn gidryn igdryn gdiryn dgiryn idgryn digryn ridgyn irdgyn rdigyn drigyn idrgyn dirgyn griydn rgiydn girydn igrydn rigydn irgydn gryidn rgyidn gyridn ygridn rygidn yrgidn giyrdn igyrdn gyirdn ygirdn iygrdn yigrdn riygdn irygdn ryigdn yrigdn iyrgdn yirgdn grdyin rgdyin gdryin dgryin rdgyin drgyin grydin rgydin gyrdin ygrdin rygdin yrgdin gdyrin dgyrin gydrin ygdrin dygrin ydgrin rdygin drygin rydgin yrdgin dyrgin ydrgin gidyrn igdyrn gdiyrn dgiyrn idgyrn digyrn giydrn igydrn gyidrn ygidrn iygdrn yigdrn gdyirn dgyirn gydirn ygdirn dygirn ydgirn idygrn diygrn iydgrn yidgrn dyigrn ydigrn ridygn irdygn rdiygn driygn idrygn dirygn riydgn irydgn ryidgn yridgn iyrdgn yirdgn rdyign dryign rydign yrdign dyrign ydrign idyrgn diyrgn iydrgn yidrgn dyirgn ydirgn grndyi rgndyi gnrdyi ngrdyi rngdyi nrgdyi grdnyi rgdnyi gdrnyi dgrnyi rdgnyi drgnyi gndryi ngdryi gdnryi dgnryi ndgryi dngryi rndgyi nrdgyi rdngyi drngyi ndrgyi dnrgyi grnydi rgnydi gnrydi ngrydi rngydi nrgydi gryndi rgyndi gyrndi ygrndi rygndi yrgndi gnyrdi ngyrdi gynrdi ygnrdi nygrdi yngrdi rnygdi nrygdi ryngdi yrngdi nyrgdi ynrgdi grdyni rgdyni gdryni dgryni rdgyni drgyni grydni rgydni gyrdni ygrdni rygdni yrgdni gdyrni dgyrni gydrni ygdrni dygrni ydgrni rdygni drygni rydgni yrdgni dyrgni ydrgni gndyri ngdyri gdnyri dgnyri ndgyri dngyri gnydri ngydri gyndri ygndri nygdri yngdri gdynri dgynri gydnri ygdnri dygnri ydgnri ndygri dnygri nydgri yndgri dyngri ydngri rndygi nrdygi rdnygi drnygi ndrygi dnrygi rnydgi nrydgi ryndgi yrndgi nyrdgi ynrdgi rdyngi dryngi rydngi yrdngi dyrngi ydrngi ndyrgi dnyrgi nydrgi yndrgi dynrgi ydnrgi gindyr igndyr gnidyr ngidyr ingdyr nigdyr gidnyr igdnyr gdinyr dginyr idgnyr dignyr gndiyr ngdiyr gdniyr dgniyr ndgiyr dngiyr indgyr nidgyr idngyr dingyr ndigyr dnigyr ginydr ignydr gniydr ngiydr ingydr nigydr giyndr igyndr gyindr ygindr iygndr yigndr gnyidr ngyidr gynidr ygnidr nygidr yngidr inygdr niygdr iyngdr yingdr nyigdr ynigdr gidynr igdynr gdiynr dgiynr idgynr digynr giydnr igydnr gyidnr ygidnr iygdnr yigdnr gdyinr dgyinr gydinr ygdinr dyginr ydginr idygnr diygnr iydgnr yidgnr dyignr ydignr gndyir ngdyir gdnyir dgnyir ndgyir dngyir gnydir ngydir gyndir ygndir nygdir yngdir gdynir dgynir gydnir ygdnir dygnir ydgnir ndygir dnygir nydgir yndgir dyngir ydngir indygr nidygr idnygr dinygr ndiygr dniygr inydgr niydgr iyndgr yindgr nyidgr ynidgr idyngr diyngr iydngr yidngr dyingr ydingr ndyigr dnyigr nydigr yndigr dynigr ydnigr rindyg irndyg rnidyg nridyg inrdyg nirdyg ridnyg irdnyg rdinyg drinyg idrnyg dirnyg rndiyg nrdiyg rdniyg drniyg ndriyg dnriyg indryg nidryg idnryg dinryg ndiryg dniryg rinydg irnydg rniydg nriydg inrydg nirydg riyndg iryndg ryindg yrindg iyrndg yirndg rnyidg nryidg rynidg yrnidg nyridg ynridg inyrdg niyrdg iynrdg yinrdg nyirdg ynirdg ridyng irdyng rdiyng driyng idryng diryng riydng irydng ryidng yridng iyrdng yirdng rdying drying ryding yrding dyring ydring idyrng diyrng iydrng yidrng dyirng ydirng rndyig nrdyig rdnyig drnyig ndryig dnryig rnydig nrydig ryndig yrndig nyrdig ynrdig rdynig drynig rydnig yrdnig dyrnig ydrnig ndyrig dnyrig nydrig yndrig dynrig ydnrig indyrg nidyrg idnyrg dinyrg ndiyrg dniyrg inydrg niydrg iyndrg yindrg nyidrg ynidrg idynrg diynrg iydnrg yidnrg dyinrg ydinrg ndyirg dnyirg nydirg yndirg dynirg ydnirg
Note: these 'words' (valid or invalid) are all the permutations of the word grindy. These words are obtained by scrambling the letters in grindy.