napper anpper npaper pnaper apnper panper napper anpper npaper pnaper apnper panper nppaer pnpaer nppaer pnpaer ppnaer ppnaer appner papner appner papner ppaner ppaner napepr anpepr npaepr pnaepr apnepr panepr naeppr aneppr neappr enappr aenppr eanppr npeapr pneapr nepapr enpapr penapr epnapr apenpr paenpr aepnpr eapnpr peanpr epanpr napepr anpepr npaepr pnaepr apnepr panepr naeppr aneppr neappr enappr aenppr eanppr npeapr pneapr nepapr enpapr penapr epnapr apenpr paenpr aepnpr eapnpr peanpr epanpr nppear pnpear nppear pnpear ppnear ppnear npepar pnepar neppar enppar penpar epnpar npepar pnepar neppar enppar penpar epnpar ppenar ppenar pepnar eppnar pepnar eppnar appenr papenr appenr papenr ppaenr ppaenr apepnr paepnr aeppnr eappnr peapnr epapnr apepnr paepnr aeppnr eappnr peapnr epapnr ppeanr ppeanr pepanr eppanr pepanr eppanr nappre anppre npapre pnapre apnpre panpre nappre anppre npapre pnapre apnpre panpre nppare pnpare nppare pnpare ppnare ppnare appnre papnre appnre papnre ppanre ppanre naprpe anprpe nparpe pnarpe apnrpe panrpe narppe anrppe nrappe rnappe arnppe ranppe nprape pnrape nrpape rnpape prnape rpnape aprnpe parnpe arpnpe rapnpe pranpe rpanpe naprpe anprpe nparpe pnarpe apnrpe panrpe narppe anrppe nrappe rnappe arnppe ranppe nprape pnrape nrpape rnpape prnape rpnape aprnpe parnpe arpnpe rapnpe pranpe rpanpe npprae pnprae npprae pnprae ppnrae ppnrae nprpae pnrpae nrppae rnppae prnpae rpnpae nprpae pnrpae nrppae rnppae prnpae rpnpae pprnae pprnae prpnae rppnae prpnae rppnae apprne paprne apprne paprne pparne pparne aprpne parpne arppne rappne prapne rpapne aprpne parpne arppne rappne prapne rpapne pprane pprane prpane rppane prpane rppane naperp anperp npaerp pnaerp apnerp panerp naeprp aneprp neaprp enaprp aenprp eanprp npearp pnearp neparp enparp penarp epnarp apenrp paenrp aepnrp eapnrp peanrp epanrp naprep anprep nparep pnarep apnrep panrep narpep anrpep nrapep rnapep arnpep ranpep npraep pnraep nrpaep rnpaep prnaep rpnaep aprnep parnep arpnep rapnep pranep rpanep naerpp anerpp nearpp enarpp aenrpp eanrpp narepp anrepp nraepp rnaepp arnepp ranepp nerapp enrapp nreapp rneapp ernapp renapp aernpp earnpp arenpp raenpp eranpp reanpp nperap pnerap neprap enprap penrap epnrap npreap pnreap nrpeap rnpeap prneap rpneap nerpap enrpap nrepap rnepap ernpap renpap pernap eprnap prenap rpenap erpnap repnap apernp paernp aeprnp eaprnp pearnp eparnp aprenp parenp arpenp rapenp praenp rpaenp aerpnp earpnp arepnp raepnp erapnp reapnp peranp epranp preanp rpeanp erpanp repanp naperp anperp npaerp pnaerp apnerp panerp naeprp aneprp neaprp enaprp aenprp eanprp npearp pnearp neparp enparp penarp epnarp apenrp paenrp aepnrp eapnrp peanrp epanrp naprep anprep nparep pnarep apnrep panrep narpep anrpep nrapep rnapep arnpep ranpep npraep pnraep nrpaep rnpaep prnaep rpnaep aprnep parnep arpnep rapnep pranep rpanep naerpp anerpp nearpp enarpp aenrpp eanrpp narepp anrepp nraepp rnaepp arnepp ranepp nerapp enrapp nreapp rneapp ernapp renapp aernpp earnpp arenpp raenpp eranpp reanpp nperap pnerap neprap enprap penrap epnrap npreap pnreap nrpeap rnpeap prneap rpneap nerpap enrpap nrepap rnepap ernpap renpap pernap eprnap prenap rpenap erpnap repnap apernp paernp aeprnp eaprnp pearnp eparnp aprenp parenp arpenp rapenp praenp rpaenp aerpnp earpnp arepnp raepnp erapnp reapnp peranp epranp preanp rpeanp erpanp repanp nppera pnpera nppera pnpera ppnera ppnera npepra pnepra neppra enppra penpra epnpra npepra pnepra neppra enppra penpra epnpra ppenra ppenra pepnra eppnra pepnra eppnra npprea pnprea npprea pnprea ppnrea ppnrea nprpea pnrpea nrppea rnppea prnpea rpnpea nprpea pnrpea nrppea rnppea prnpea rpnpea pprnea pprnea prpnea rppnea prpnea rppnea nperpa pnerpa neprpa enprpa penrpa epnrpa nprepa pnrepa nrpepa rnpepa prnepa rpnepa nerppa enrppa nreppa rneppa ernppa renppa pernpa eprnpa prenpa rpenpa erpnpa repnpa nperpa pnerpa neprpa enprpa penrpa epnrpa nprepa pnrepa nrpepa rnpepa prnepa rpnepa nerppa enrppa nreppa rneppa ernppa renppa pernpa eprnpa prenpa rpenpa erpnpa repnpa pperna pperna peprna epprna peprna epprna pprena pprena prpena rppena prpena rppena perpna eprpna prepna rpepna erppna reppna perpna eprpna prepna rpepna erppna reppna appern papern appern papern ppaern ppaern apeprn paeprn aepprn eapprn peaprn epaprn apeprn paeprn aepprn eapprn peaprn epaprn ppearn ppearn peparn epparn peparn epparn appren papren appren papren pparen pparen aprpen parpen arppen rappen prapen rpapen aprpen parpen arppen rappen prapen rpapen ppraen ppraen prpaen rppaen prpaen rppaen aperpn paerpn aeprpn eaprpn pearpn eparpn aprepn parepn arpepn rapepn praepn rpaepn aerppn earppn areppn raeppn erappn reappn perapn eprapn preapn rpeapn erpapn repapn aperpn paerpn aeprpn eaprpn pearpn eparpn aprepn parepn arpepn rapepn praepn rpaepn aerppn earppn areppn raeppn erappn reappn perapn eprapn preapn rpeapn erpapn repapn pperan pperan pepran eppran pepran eppran pprean pprean prpean rppean prpean rppean perpan eprpan prepan rpepan erppan reppan perpan eprpan prepan rpepan erppan reppan
Note: these 'words' (valid or invalid) are all the permutations of the word napper. These words are obtained by scrambling the letters in napper.