napped anpped npaped pnaped apnped panped napped anpped npaped pnaped apnped panped nppaed pnpaed nppaed pnpaed ppnaed ppnaed appned papned appned papned ppaned ppaned napepd anpepd npaepd pnaepd apnepd panepd naeppd aneppd neappd enappd aenppd eanppd npeapd pneapd nepapd enpapd penapd epnapd apenpd paenpd aepnpd eapnpd peanpd epanpd napepd anpepd npaepd pnaepd apnepd panepd naeppd aneppd neappd enappd aenppd eanppd npeapd pneapd nepapd enpapd penapd epnapd apenpd paenpd aepnpd eapnpd peanpd epanpd nppead pnpead nppead pnpead ppnead ppnead npepad pnepad neppad enppad penpad epnpad npepad pnepad neppad enppad penpad epnpad ppenad ppenad pepnad eppnad pepnad eppnad append papend append papend ppaend ppaend apepnd paepnd aeppnd eappnd peapnd epapnd apepnd paepnd aeppnd eappnd peapnd epapnd ppeand ppeand pepand eppand pepand eppand nappde anppde npapde pnapde apnpde panpde nappde anppde npapde pnapde apnpde panpde nppade pnpade nppade pnpade ppnade ppnade appnde papnde appnde papnde ppande ppande napdpe anpdpe npadpe pnadpe apndpe pandpe nadppe andppe ndappe dnappe adnppe danppe npdape pndape ndpape dnpape pdnape dpnape apdnpe padnpe adpnpe dapnpe pdanpe dpanpe napdpe anpdpe npadpe pnadpe apndpe pandpe nadppe andppe ndappe dnappe adnppe danppe npdape pndape ndpape dnpape pdnape dpnape apdnpe padnpe adpnpe dapnpe pdanpe dpanpe nppdae pnpdae nppdae pnpdae ppndae ppndae npdpae pndpae ndppae dnppae pdnpae dpnpae npdpae pndpae ndppae dnppae pdnpae dpnpae ppdnae ppdnae pdpnae dppnae pdpnae dppnae appdne papdne appdne papdne ppadne ppadne apdpne padpne adppne dappne pdapne dpapne apdpne padpne adppne dappne pdapne dpapne ppdane ppdane pdpane dppane pdpane dppane napedp anpedp npaedp pnaedp apnedp panedp naepdp anepdp neapdp enapdp aenpdp eanpdp npeadp pneadp nepadp enpadp penadp epnadp apendp paendp aepndp eapndp peandp epandp napdep anpdep npadep pnadep apndep pandep nadpep andpep ndapep dnapep adnpep danpep npdaep pndaep ndpaep dnpaep pdnaep dpnaep apdnep padnep adpnep dapnep pdanep dpanep naedpp anedpp neadpp enadpp aendpp eandpp nadepp andepp ndaepp dnaepp adnepp danepp nedapp endapp ndeapp dneapp ednapp denapp aednpp eadnpp adenpp daenpp edanpp deanpp npedap pnedap nepdap enpdap pendap epndap npdeap pndeap ndpeap dnpeap pdneap dpneap nedpap endpap ndepap dnepap ednpap denpap pednap epdnap pdenap dpenap edpnap depnap apednp paednp aepdnp eapdnp peadnp epadnp apdenp padenp adpenp dapenp pdaenp dpaenp aedpnp eadpnp adepnp daepnp edapnp deapnp pedanp epdanp pdeanp dpeanp edpanp depanp napedp anpedp npaedp pnaedp apnedp panedp naepdp anepdp neapdp enapdp aenpdp eanpdp npeadp pneadp nepadp enpadp penadp epnadp apendp paendp aepndp eapndp peandp epandp napdep anpdep npadep pnadep apndep pandep nadpep andpep ndapep dnapep adnpep danpep npdaep pndaep ndpaep dnpaep pdnaep dpnaep apdnep padnep adpnep dapnep pdanep dpanep naedpp anedpp neadpp enadpp aendpp eandpp nadepp andepp ndaepp dnaepp adnepp danepp nedapp endapp ndeapp dneapp ednapp denapp aednpp eadnpp adenpp daenpp edanpp deanpp npedap pnedap nepdap enpdap pendap epndap npdeap pndeap ndpeap dnpeap pdneap dpneap nedpap endpap ndepap dnepap ednpap denpap pednap epdnap pdenap dpenap edpnap depnap apednp paednp aepdnp eapdnp peadnp epadnp apdenp padenp adpenp dapenp pdaenp dpaenp aedpnp eadpnp adepnp daepnp edapnp deapnp pedanp epdanp pdeanp dpeanp edpanp depanp nppeda pnpeda nppeda pnpeda ppneda ppneda npepda pnepda neppda enppda penpda epnpda npepda pnepda neppda enppda penpda epnpda ppenda ppenda pepnda eppnda pepnda eppnda nppdea pnpdea nppdea pnpdea ppndea ppndea npdpea pndpea ndppea dnppea pdnpea dpnpea npdpea pndpea ndppea dnppea pdnpea dpnpea ppdnea ppdnea pdpnea dppnea pdpnea dppnea npedpa pnedpa nepdpa enpdpa pendpa epndpa npdepa pndepa ndpepa dnpepa pdnepa dpnepa nedppa endppa ndeppa dneppa ednppa denppa pednpa epdnpa pdenpa dpenpa edpnpa depnpa npedpa pnedpa nepdpa enpdpa pendpa epndpa npdepa pndepa ndpepa dnpepa pdnepa dpnepa nedppa endppa ndeppa dneppa ednppa denppa pednpa epdnpa pdenpa dpenpa edpnpa depnpa ppedna ppedna pepdna eppdna pepdna eppdna ppdena ppdena pdpena dppena pdpena dppena pedpna epdpna pdepna dpepna edppna deppna pedpna epdpna pdepna dpepna edppna deppna appedn papedn appedn papedn ppaedn ppaedn apepdn paepdn aeppdn eappdn peapdn epapdn apepdn paepdn aeppdn eappdn peapdn epapdn ppeadn ppeadn pepadn eppadn pepadn eppadn appden papden appden papden ppaden ppaden apdpen padpen adppen dappen pdapen dpapen apdpen padpen adppen dappen pdapen dpapen ppdaen ppdaen pdpaen dppaen pdpaen dppaen apedpn paedpn aepdpn eapdpn peadpn epadpn apdepn padepn adpepn dapepn pdaepn dpaepn aedppn eadppn adeppn daeppn edappn deappn pedapn epdapn pdeapn dpeapn edpapn depapn apedpn paedpn aepdpn eapdpn peadpn epadpn apdepn padepn adpepn dapepn pdaepn dpaepn aedppn eadppn adeppn daeppn edappn deappn pedapn epdapn pdeapn dpeapn edpapn depapn ppedan ppedan pepdan eppdan pepdan eppdan ppdean ppdean pdpean dppean pdpean dppean pedpan epdpan pdepan dpepan edppan deppan pedpan epdpan pdepan dpepan edppan deppan
Note: these 'words' (valid or invalid) are all the permutations of the word napped. These words are obtained by scrambling the letters in napped.