ervils revils evrils verils rveils vreils erivls reivls eirvls iervls rievls irevls evirls veirls eivrls ievrls vierls iverls rviels vriels rivels irvels virels ivrels ervlis revlis evrlis verlis rvelis vrelis erlvis relvis elrvis lervis rlevis lrevis evlris velris elvris levris vleris lveris rvleis vrleis rlveis lrveis vlreis lvreis erilvs reilvs eirlvs ierlvs rielvs irelvs erlivs relivs elrivs lerivs rleivs lreivs eilrvs ielrvs elirvs leirvs ilervs liervs rilevs irlevs rlievs lrievs ilrevs lirevs evilrs veilrs eivlrs ievlrs vielrs ivelrs evlirs velirs elvirs levirs vleirs lveirs eilvrs ielvrs elivrs leivrs ilevrs lievrs vilers ivlers vliers lviers ilvers livers rviles vriles rivles irvles virles ivrles rvlies vrlies rlvies lrvies vlries lvries rilves irlves rlives lrives ilrves lirves vilres ivlres vlires lvires ilvres livres ervisl revisl evrisl verisl rveisl vreisl erivsl reivsl eirvsl iervsl rievsl irevsl evirsl veirsl eivrsl ievrsl viersl iversl rviesl vriesl rivesl irvesl viresl ivresl ervsil revsil evrsil versil rvesil vresil ersvil resvil esrvil servil rsevil srevil evsril vesril esvril sevril vseril sveril rvseil vrseil rsveil srveil vsreil svreil erisvl reisvl eirsvl iersvl riesvl iresvl ersivl resivl esrivl serivl rseivl sreivl eisrvl iesrvl esirvl seirvl iservl siervl risevl irsevl rsievl srievl isrevl sirevl evisrl veisrl eivsrl ievsrl viesrl ivesrl evsirl vesirl esvirl sevirl vseirl sveirl eisvrl iesvrl esivrl seivrl isevrl sievrl viserl ivserl vsierl svierl isverl siverl rvisel vrisel rivsel irvsel virsel ivrsel rvsiel vrsiel rsviel srviel vsriel svriel risvel irsvel rsivel srivel isrvel sirvel visrel ivsrel vsirel svirel isvrel sivrel ervlsi revlsi evrlsi verlsi rvelsi vrelsi erlvsi relvsi elrvsi lervsi rlevsi lrevsi evlrsi velrsi elvrsi levrsi vlersi lversi rvlesi vrlesi rlvesi lrvesi vlresi lvresi ervsli revsli evrsli versli rvesli vresli ersvli resvli esrvli servli rsevli srevli evsrli vesrli esvrli sevrli vserli sverli rvseli vrseli rsveli srveli vsreli svreli erlsvi relsvi elrsvi lersvi rlesvi lresvi erslvi reslvi esrlvi serlvi rselvi srelvi elsrvi lesrvi eslrvi selrvi lservi slervi rlsevi lrsevi rslevi srlevi lsrevi slrevi evlsri velsri elvsri levsri vlesri lvesri evslri veslri esvlri sevlri vselri svelri elsvri lesvri eslvri selvri lsevri slevri vlseri lvseri vsleri svleri lsveri slveri rvlsei vrlsei rlvsei lrvsei vlrsei lvrsei rvslei vrslei rsvlei srvlei vsrlei svrlei rlsvei lrsvei rslvei srlvei lsrvei slrvei vlsrei lvsrei vslrei svlrei lsvrei slvrei erilsv reilsv eirlsv ierlsv rielsv irelsv erlisv relisv elrisv lerisv rleisv lreisv eilrsv ielrsv elirsv leirsv ilersv liersv rilesv irlesv rliesv lriesv ilresv liresv erislv reislv eirslv ierslv rieslv ireslv ersilv resilv esrilv serilv rseilv sreilv eisrlv iesrlv esirlv seirlv iserlv sierlv riselv irselv rsielv srielv isrelv sirelv erlsiv relsiv elrsiv lersiv rlesiv lresiv ersliv resliv esrliv serliv rseliv sreliv elsriv lesriv eslriv selriv lseriv sleriv rlseiv lrseiv rsleiv srleiv lsreiv slreiv eilsrv ielsrv elisrv leisrv ilesrv liesrv eislrv ieslrv esilrv seilrv iselrv sielrv elsirv lesirv eslirv selirv lseirv sleirv ilserv liserv islerv silerv lsierv slierv rilsev irlsev rlisev lrisev ilrsev lirsev rislev irslev rsilev srilev isrlev sirlev rlsiev lrsiev rsliev srliev lsriev slriev ilsrev lisrev islrev silrev lsirev slirev evilsr veilsr eivlsr ievlsr vielsr ivelsr evlisr velisr elvisr levisr vleisr lveisr eilvsr ielvsr elivsr leivsr ilevsr lievsr vilesr ivlesr vliesr lviesr ilvesr livesr evislr veislr eivslr ievslr vieslr iveslr evsilr vesilr esvilr sevilr vseilr sveilr eisvlr iesvlr esivlr seivlr isevlr sievlr viselr ivselr vsielr svielr isvelr sivelr evlsir velsir elvsir levsir vlesir lvesir evslir veslir esvlir sevlir vselir svelir elsvir lesvir eslvir selvir lsevir slevir vlseir lvseir vsleir svleir lsveir slveir eilsvr ielsvr elisvr leisvr ilesvr liesvr eislvr ieslvr esilvr seilvr iselvr sielvr elsivr lesivr eslivr selivr lseivr sleivr ilsevr lisevr islevr silevr lsievr slievr vilser ivlser vliser lviser ilvser livser visler ivsler vsiler sviler isvler sivler vlsier lvsier vslier svlier lsvier slvier ilsver lisver islver silver lsiver sliver rvilse vrilse rivlse irvlse virlse ivrlse rvlise vrlise rlvise lrvise vlrise lvrise rilvse irlvse rlivse lrivse ilrvse lirvse vilrse ivlrse vlirse lvirse ilvrse livrse rvisle vrisle rivsle irvsle virsle ivrsle rvsile vrsile rsvile srvile vsrile svrile risvle irsvle rsivle srivle isrvle sirvle visrle ivsrle vsirle svirle isvrle sivrle rvlsie vrlsie rlvsie lrvsie vlrsie lvrsie rvslie vrslie rsvlie srvlie vsrlie svrlie rlsvie lrsvie rslvie srlvie lsrvie slrvie vlsrie lvsrie vslrie svlrie lsvrie slvrie rilsve irlsve rlisve lrisve ilrsve lirsve rislve irslve rsilve srilve isrlve sirlve rlsive lrsive rslive srlive lsrive slrive ilsrve lisrve islrve silrve lsirve slirve vilsre ivlsre vlisre lvisre ilvsre livsre vislre ivslre vsilre svilre isvlre sivlre vlsire lvsire vslire svlire lsvire slvire ilsvre lisvre islvre silvre lsivre slivre
Note: these 'words' (valid or invalid) are all the permutations of the word ervils. These words are obtained by scrambling the letters in ervils.