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