rasper arsper rsaper sraper asrper sarper rapser arpser rpaser praser aprser parser rspaer srpaer rpsaer prsaer spraer psraer asprer saprer apsrer pasrer sparer psarer rasepr arsepr rsaepr sraepr asrepr sarepr raespr arespr reaspr eraspr aerspr earspr rseapr sreapr resapr ersapr serapr esrapr aserpr saerpr aesrpr easrpr searpr esarpr rapesr arpesr rpaesr praesr apresr paresr raepsr arepsr reapsr erapsr aerpsr earpsr rpeasr preasr repasr erpasr perasr eprasr apersr paersr aeprsr eaprsr pearsr eparsr rspear srpear rpsear prsear sprear psrear rsepar srepar respar erspar serpar esrpar rpesar presar repsar erpsar persar eprsar sperar pserar seprar esprar pesrar epsrar asperr saperr apserr paserr spaerr psaerr aseprr saeprr aesprr easprr seaprr esaprr apesrr paesrr aepsrr eapsrr peasrr epasrr spearr psearr separr esparr pesarr epsarr raspre arspre rsapre srapre asrpre sarpre rapsre arpsre rpasre prasre aprsre parsre rspare srpare rpsare prsare sprare psrare asprre saprre apsrre pasrre sparre psarre rasrpe arsrpe rsarpe srarpe asrrpe sarrpe rarspe arrspe rraspe rraspe arrspe rarspe rsrape srrape rrsape rrsape srrape rsrape asrrpe sarrpe arsrpe rasrpe srarpe rsarpe raprse arprse rparse prarse aprrse parrse rarpse arrpse rrapse rrapse arrpse rarpse rprase prrase rrpase rrpase prrase rprase aprrse parrse arprse raprse prarse rparse rsprae srprae rpsrae prsrae sprrae psrrae rsrpae srrpae rrspae rrspae srrpae rsrpae rprsae prrsae rrpsae rrpsae prrsae rprsae sprrae psrrae srprae rsprae prsrae rpsrae asprre saprre apsrre pasrre sparre psarre asrpre sarpre arspre raspre srapre rsapre aprsre parsre arpsre rapsre prasre rpasre sprare psrare srpare rspare prsare rpsare raserp arserp rsaerp sraerp asrerp sarerp raesrp aresrp reasrp erasrp aersrp earsrp rsearp srearp resarp ersarp serarp esrarp aserrp saerrp aesrrp easrrp searrp esarrp rasrep arsrep rsarep srarep asrrep sarrep rarsep arrsep rrasep rrasep arrsep rarsep rsraep srraep rrsaep rrsaep srraep rsraep asrrep sarrep arsrep rasrep srarep rsarep raersp arersp rearsp erarsp aerrsp earrsp raresp arresp rraesp rraesp arresp raresp rerasp errasp rreasp rreasp errasp rerasp aerrsp earrsp arersp raersp erarsp rearsp rserap srerap resrap ersrap serrap esrrap rsreap srreap rrseap rrseap srreap rsreap rersap errsap rresap rresap errsap rersap serrap esrrap srerap rserap ersrap resrap aserrp saerrp aesrrp easrrp searrp esarrp asrerp sarerp arserp raserp sraerp rsaerp aersrp earsrp aresrp raesrp erasrp reasrp serarp esrarp srearp rsearp ersarp resarp rapers arpers rpaers praers aprers parers raeprs areprs reaprs eraprs aerprs earprs rpears prears repars erpars perars eprars aperrs paerrs aeprrs eaprrs pearrs eparrs rapres arpres rpares prares aprres parres rarpes arrpes rrapes rrapes arrpes rarpes rpraes prraes rrpaes rrpaes prraes rpraes aprres parres arpres rapres prares rpares raerps arerps rearps erarps aerrps earrps rareps arreps rraeps rraeps arreps rareps reraps erraps rreaps rreaps erraps reraps aerrps earrps arerps raerps erarps rearps rperas preras repras erpras perras eprras rpreas prreas rrpeas rrpeas prreas rpreas rerpas errpas rrepas rrepas errpas rerpas perras eprras preras rperas erpras repras aperrs paerrs aeprrs eaprrs pearrs eparrs aprers parers arpers rapers praers rpaers aerprs earprs areprs raeprs eraprs reaprs perars eprars prears rpears erpars repars rspera srpera rpsera prsera sprera psrera rsepra srepra respra erspra serpra esrpra rpesra presra repsra erpsra persra eprsra sperra pserra seprra esprra pesrra epsrra rsprea srprea rpsrea prsrea sprrea psrrea rsrpea srrpea rrspea rrspea srrpea rsrpea rprsea prrsea rrpsea rrpsea prrsea rprsea sprrea psrrea srprea rsprea prsrea rpsrea rserpa srerpa resrpa ersrpa serrpa esrrpa rsrepa srrepa rrsepa rrsepa srrepa rsrepa rerspa errspa rrespa rrespa errspa rerspa serrpa esrrpa srerpa rserpa ersrpa resrpa rpersa prersa reprsa erprsa perrsa eprrsa rpresa prresa rrpesa rrpesa prresa rpresa rerpsa errpsa rrepsa rrepsa errpsa rerpsa perrsa eprrsa prersa rpersa erprsa reprsa sperra pserra seprra esprra pesrra epsrra sprera psrera srpera rspera prsera rpsera serpra esrpra srepra rsepra erspra respra persra eprsra presra rpesra erpsra repsra asperr saperr apserr paserr spaerr psaerr aseprr saeprr aesprr easprr seaprr esaprr apesrr paesrr aepsrr eapsrr peasrr epasrr spearr psearr separr esparr pesarr epsarr asprer saprer apsrer pasrer sparer psarer asrper sarper arsper rasper sraper rsaper aprser parser arpser rapser praser rpaser spraer psraer srpaer rspaer prsaer rpsaer aserpr saerpr aesrpr easrpr searpr esarpr asrepr sarepr arsepr rasepr sraepr rsaepr aerspr earspr arespr raespr eraspr reaspr serapr esrapr sreapr rseapr ersapr resapr apersr paersr aeprsr eaprsr pearsr eparsr apresr paresr arpesr rapesr praesr rpaesr aerpsr earpsr arepsr raepsr erapsr reapsr perasr eprasr preasr rpeasr erpasr repasr sperar pserar seprar esprar pesrar epsrar sprear psrear srpear rspear prsear rpsear serpar esrpar srepar rsepar erspar respar persar eprsar presar rpesar erpsar repsar
Note: these 'words' (valid or invalid) are all the permutations of the word rasper. These words are obtained by scrambling the letters in rasper.