nighly inghly ngihly gnihly ignhly ginhly nihgly inhgly nhigly hnigly ihngly hingly nghily gnhily nhgily hngily ghnily hgnily ighnly gihnly ihgnly hignly ghinly hginly niglhy inglhy ngilhy gnilhy ignlhy ginlhy nilghy inlghy nlighy lnighy ilnghy linghy nglihy gnlihy nlgihy lngihy glnihy lgnihy iglnhy gilnhy ilgnhy lignhy glinhy lginhy nihlgy inhlgy nhilgy hnilgy ihnlgy hinlgy nilhgy inlhgy nlihgy lnihgy ilnhgy linhgy nhligy hnligy nlhigy lnhigy hlnigy lhnigy ihlngy hilngy ilhngy lihngy hlingy lhingy nghliy gnhliy nhgliy hngliy ghnliy hgnliy nglhiy gnlhiy nlghiy lnghiy glnhiy lgnhiy nhlgiy hnlgiy nlhgiy lnhgiy hlngiy lhngiy ghlniy hglniy glhniy lghniy hlgniy lhgniy ighlny gihlny ihglny higlny ghilny hgilny iglhny gilhny ilghny lighny glihny lgihny ihlgny hilgny ilhgny lihgny hligny lhigny ghliny hgliny glhiny lghiny hlginy lhginy nighyl inghyl ngihyl gnihyl ignhyl ginhyl nihgyl inhgyl nhigyl hnigyl ihngyl hingyl nghiyl gnhiyl nhgiyl hngiyl ghniyl hgniyl ighnyl gihnyl ihgnyl hignyl ghinyl hginyl nigyhl ingyhl ngiyhl gniyhl ignyhl ginyhl niyghl inyghl nyighl ynighl iynghl yinghl ngyihl gnyihl nygihl yngihl gynihl ygnihl igynhl giynhl iygnhl yignhl gyinhl yginhl nihygl inhygl nhiygl hniygl ihnygl hinygl niyhgl inyhgl nyihgl ynihgl iynhgl yinhgl nhyigl hnyigl nyhigl ynhigl hynigl yhnigl ihyngl hiyngl iyhngl yihngl hyingl yhingl nghyil gnhyil nhgyil hngyil ghnyil hgnyil ngyhil gnyhil nyghil ynghil gynhil ygnhil nhygil hnygil nyhgil ynhgil hyngil yhngil ghynil hgynil gyhnil yghnil hygnil yhgnil ighynl gihynl ihgynl higynl ghiynl hgiynl igyhnl giyhnl iyghnl yighnl gyihnl ygihnl ihygnl hiygnl iyhgnl yihgnl hyignl yhignl ghyinl hgyinl gyhinl yghinl hyginl yhginl niglyh inglyh ngilyh gnilyh ignlyh ginlyh nilgyh inlgyh nligyh lnigyh ilngyh lingyh ngliyh gnliyh nlgiyh lngiyh glniyh lgniyh iglnyh gilnyh ilgnyh lignyh glinyh lginyh nigylh ingylh ngiylh gniylh ignylh ginylh niyglh inyglh nyiglh yniglh iynglh yinglh ngyilh gnyilh nygilh yngilh gynilh ygnilh igynlh giynlh iygnlh yignlh gyinlh yginlh nilygh inlygh nliygh lniygh ilnygh linygh niylgh inylgh nyilgh ynilgh iynlgh yinlgh nlyigh lnyigh nyligh ynligh lynigh ylnigh ilyngh liyngh iylngh yilngh lyingh ylingh nglyih gnlyih nlgyih lngyih glnyih lgnyih ngylih gnylih nyglih ynglih gynlih ygnlih nlygih lnygih nylgih ynlgih lyngih ylngih glynih lgynih gylnih yglnih lygnih ylgnih iglynh gilynh ilgynh ligynh gliynh lgiynh igylnh giylnh iyglnh yiglnh gyilnh ygilnh ilygnh liygnh iylgnh yilgnh lyignh ylignh glyinh lgyinh gylinh yglinh lyginh ylginh nihlyg inhlyg nhilyg hnilyg ihnlyg hinlyg nilhyg inlhyg nlihyg lnihyg ilnhyg linhyg nhliyg hnliyg nlhiyg lnhiyg hlniyg lhniyg ihlnyg hilnyg ilhnyg lihnyg hlinyg lhinyg nihylg inhylg nhiylg hniylg ihnylg hinylg niyhlg inyhlg nyihlg ynihlg iynhlg yinhlg nhyilg hnyilg nyhilg ynhilg hynilg yhnilg ihynlg hiynlg iyhnlg yihnlg hyinlg yhinlg nilyhg inlyhg nliyhg lniyhg ilnyhg linyhg niylhg inylhg nyilhg ynilhg iynlhg yinlhg nlyihg lnyihg nylihg ynlihg lynihg ylnihg ilynhg liynhg iylnhg yilnhg lyinhg ylinhg nhlyig hnlyig nlhyig lnhyig hlnyig lhnyig nhylig hnylig nyhlig ynhlig hynlig yhnlig nlyhig lnyhig nylhig ynlhig lynhig ylnhig hlynig lhynig hylnig yhlnig lyhnig ylhnig ihlyng hilyng ilhyng lihyng hliyng lhiyng ihylng hiylng iyhlng yihlng hyilng yhilng ilyhng liyhng iylhng yilhng lyihng ylihng hlying lhying hyling yhling lyhing ylhing nghlyi gnhlyi nhglyi hnglyi ghnlyi hgnlyi nglhyi gnlhyi nlghyi lnghyi glnhyi lgnhyi nhlgyi hnlgyi nlhgyi lnhgyi hlngyi lhngyi ghlnyi hglnyi glhnyi lghnyi hlgnyi lhgnyi nghyli gnhyli nhgyli hngyli ghnyli hgnyli ngyhli gnyhli nyghli ynghli gynhli ygnhli nhygli hnygli nyhgli ynhgli hyngli yhngli ghynli hgynli gyhnli yghnli hygnli yhgnli nglyhi gnlyhi nlgyhi lngyhi glnyhi lgnyhi ngylhi gnylhi nyglhi ynglhi gynlhi ygnlhi nlyghi lnyghi nylghi ynlghi lynghi ylnghi glynhi lgynhi gylnhi yglnhi lygnhi ylgnhi nhlygi hnlygi nlhygi lnhygi hlnygi lhnygi nhylgi hnylgi nyhlgi ynhlgi hynlgi yhnlgi nlyhgi lnyhgi nylhgi ynlhgi lynhgi ylnhgi hlyngi lhyngi hylngi yhlngi lyhngi ylhngi ghlyni hglyni glhyni lghyni hlgyni lhgyni ghylni hgylni gyhlni yghlni hyglni yhglni glyhni lgyhni gylhni yglhni lyghni ylghni hlygni lhygni hylgni yhlgni lyhgni ylhgni ighlyn gihlyn ihglyn higlyn ghilyn hgilyn iglhyn gilhyn ilghyn lighyn glihyn lgihyn ihlgyn hilgyn ilhgyn lihgyn hligyn lhigyn ghliyn hgliyn glhiyn lghiyn hlgiyn lhgiyn ighyln gihyln ihgyln higyln ghiyln hgiyln igyhln giyhln iyghln yighln gyihln ygihln ihygln hiygln iyhgln yihgln hyigln yhigln ghyiln hgyiln gyhiln yghiln hygiln yhgiln iglyhn gilyhn ilgyhn ligyhn gliyhn lgiyhn igylhn giylhn iyglhn yiglhn gyilhn ygilhn ilyghn liyghn iylghn yilghn lyighn ylighn glyihn lgyihn gylihn yglihn lygihn ylgihn ihlygn hilygn ilhygn lihygn hliygn lhiygn ihylgn hiylgn iyhlgn yihlgn hyilgn yhilgn ilyhgn liyhgn iylhgn yilhgn lyihgn ylihgn hlyign lhyign hylign yhlign lyhign ylhign ghlyin hglyin glhyin lghyin hlgyin lhgyin ghylin hgylin gyhlin yghlin hyglin yhglin glyhin lgyhin gylhin yglhin lyghin ylghin hlygin lhygin hylgin yhlgin lyhgin ylhgin
Note: these 'words' (valid or invalid) are all the permutations of the word nighly. These words are obtained by scrambling the letters in nighly.