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