ponder opnder pnoder npoder onpder nopder podner opdner pdoner dponer odpner dopner pndoer npdoer pdnoer dpnoer ndpoer dnpoer ondper nodper odnper donper ndoper dnoper ponedr opnedr pnoedr npoedr onpedr nopedr poendr opendr peondr epondr oepndr eopndr pneodr npeodr penodr epnodr nepodr enpodr onepdr noepdr oenpdr eonpdr neopdr enopdr podenr opdenr pdoenr dpoenr odpenr dopenr poednr opednr peodnr epodnr oepdnr eopdnr pdeonr dpeonr pedonr epdonr deponr edponr odepnr doepnr oedpnr eodpnr deopnr edopnr pndeor npdeor pdneor dpneor ndpeor dnpeor pnedor npedor pendor epndor nepdor enpdor pdenor dpenor pednor epdnor depnor edpnor ndepor dnepor nedpor endpor denpor ednpor ondepr nodepr odnepr donepr ndoepr dnoepr onedpr noedpr oendpr eondpr neodpr enodpr odenpr doenpr oednpr eodnpr deonpr edonpr ndeopr dneopr nedopr endopr denopr ednopr pondre opndre pnodre npodre onpdre nopdre podnre opdnre pdonre dponre odpnre dopnre pndore npdore pdnore dpnore ndpore dnpore ondpre nodpre odnpre donpre ndopre dnopre ponrde opnrde pnorde nporde onprde noprde pornde oprnde pronde rponde orpnde ropnde pnrode nprode prnode rpnode nrpode rnpode onrpde norpde ornpde ronpde nropde rnopde podrne opdrne pdorne dporne odprne doprne pordne oprdne prodne rpodne orpdne ropdne pdrone dprone prdone rpdone drpone rdpone odrpne dorpne ordpne rodpne dropne rdopne pndroe npdroe pdnroe dpnroe ndproe dnproe pnrdoe nprdoe prndoe rpndoe nrpdoe rnpdoe pdrnoe dprnoe prdnoe rpdnoe drpnoe rdpnoe ndrpoe dnrpoe nrdpoe rndpoe drnpoe rdnpoe ondrpe nodrpe odnrpe donrpe ndorpe dnorpe onrdpe nordpe orndpe rondpe nrodpe rnodpe odrnpe dornpe ordnpe rodnpe dronpe rdonpe ndrope dnrope nrdope rndope drnope rdnope ponerd opnerd pnoerd npoerd onperd noperd poenrd openrd peonrd eponrd oepnrd eopnrd pneord npeord penord epnord nepord enpord oneprd noeprd oenprd eonprd neoprd enoprd ponred opnred pnored npored onpred nopred porned oprned proned rponed orpned ropned pnroed nproed prnoed rpnoed nrpoed rnpoed onrped norped ornped ronped nroped rnoped poernd opernd peornd epornd oeprnd eoprnd porend oprend proend rpoend orpend ropend perond eprond preond rpeond erpond repond oerpnd eorpnd orepnd roepnd eropnd reopnd pnerod nperod penrod epnrod neprod enprod pnreod npreod prneod rpneod nrpeod rnpeod pernod eprnod prenod rpenod erpnod repnod nerpod enrpod nrepod rnepod ernpod renpod onerpd noerpd oenrpd eonrpd neorpd enorpd onrepd norepd ornepd ronepd nroepd rnoepd oernpd eornpd orenpd roenpd eronpd reonpd neropd enropd nreopd rneopd ernopd renopd podern opdern pdoern dpoern odpern dopern poedrn opedrn peodrn epodrn oepdrn eopdrn pdeorn dpeorn pedorn epdorn deporn edporn odeprn doeprn oedprn eodprn deoprn edoprn podren opdren pdoren dporen odpren dopren porden oprden proden rpoden orpden ropden pdroen dproen prdoen rpdoen drpoen rdpoen odrpen dorpen ordpen rodpen dropen rdopen poerdn operdn peordn epordn oeprdn eoprdn poredn opredn proedn rpoedn orpedn ropedn perodn eprodn preodn rpeodn erpodn repodn oerpdn eorpdn orepdn roepdn eropdn reopdn pderon dperon pedron epdron depron edpron pdreon dpreon prdeon rpdeon drpeon rdpeon perdon eprdon predon rpedon erpdon repdon derpon edrpon drepon rdepon erdpon redpon oderpn doerpn oedrpn eodrpn deorpn edorpn odrepn dorepn ordepn rodepn droepn rdoepn oerdpn eordpn oredpn roedpn erodpn reodpn deropn edropn dreopn rdeopn erdopn redopn pndero npdero pdnero dpnero ndpero dnpero pnedro npedro pendro epndro nepdro enpdro pdenro dpenro pednro epdnro depnro edpnro ndepro dnepro nedpro endpro denpro ednpro pndreo npdreo pdnreo dpnreo ndpreo dnpreo pnrdeo nprdeo prndeo rpndeo nrpdeo rnpdeo pdrneo dprneo prdneo rpdneo drpneo rdpneo ndrpeo dnrpeo nrdpeo rndpeo drnpeo rdnpeo pnerdo nperdo penrdo epnrdo neprdo enprdo pnredo npredo prnedo rpnedo nrpedo rnpedo perndo eprndo prendo rpendo erpndo repndo nerpdo enrpdo nrepdo rnepdo ernpdo renpdo pderno dperno pedrno epdrno deprno edprno pdreno dpreno prdeno rpdeno drpeno rdpeno perdno eprdno predno rpedno erpdno repdno derpno edrpno drepno rdepno erdpno redpno nderpo dnerpo nedrpo endrpo denrpo ednrpo ndrepo dnrepo nrdepo rndepo drnepo rdnepo nerdpo enrdpo nredpo rnedpo erndpo rendpo dernpo edrnpo drenpo rdenpo erdnpo rednpo onderp noderp odnerp donerp ndoerp dnoerp onedrp noedrp oendrp eondrp neodrp enodrp odenrp doenrp oednrp eodnrp deonrp edonrp ndeorp dneorp nedorp endorp denorp ednorp ondrep nodrep odnrep donrep ndorep dnorep onrdep nordep orndep rondep nrodep rnodep odrnep dornep ordnep rodnep dronep rdonep ndroep dnroep nrdoep rndoep drnoep rdnoep onerdp noerdp oenrdp eonrdp neordp enordp onredp noredp ornedp ronedp nroedp rnoedp oerndp eorndp orendp roendp erondp reondp nerodp enrodp nreodp rneodp ernodp renodp odernp doernp oedrnp eodrnp deornp edornp odrenp dorenp ordenp rodenp droenp rdoenp oerdnp eordnp orednp roednp erodnp reodnp deronp edronp dreonp rdeonp erdonp redonp nderop dnerop nedrop endrop denrop ednrop ndreop dnreop nrdeop rndeop drneop rdneop nerdop enrdop nredop rnedop erndop rendop dernop edrnop drenop rdenop erdnop rednop
Note: these 'words' (valid or invalid) are all the permutations of the word ponder. These words are obtained by scrambling the letters in ponder.