perter eprter preter rpeter erpter repter petrer eptrer pterer tperer etprer teprer prteer rpteer ptreer tpreer rtpeer trpeer ertper retper etrper terper rteper treper peretr epretr preetr rpeetr erpetr repetr peertr epertr peertr epertr eeprtr eeprtr preetr rpeetr peretr epretr repetr erpetr ereptr reeptr eerptr eerptr reeptr ereptr peterr epterr pteerr tpeerr etperr teperr peetrr epetrr peetrr epetrr eeptrr eeptrr pteerr tpeerr peterr epterr teperr etperr eteprr teeprr eetprr eetprr teeprr eteprr prteer rpteer ptreer tpreer rtpeer trpeer preter rpeter perter eprter repter erpter pterer tperer petrer eptrer teprer etprer rteper treper retper ertper terper etrper ertepr retepr etrepr terepr rteepr treepr eretpr reetpr eertpr eertpr reetpr eretpr eterpr teerpr eetrpr eetrpr teerpr eterpr rteepr treepr retepr ertepr terepr etrepr pertre eprtre pretre rpetre erptre reptre petrre eptrre pterre tperre etprre teprre prtere rptere ptrere tprere rtpere trpere ertpre retpre etrpre terpre rtepre trepre perrte eprrte prerte rperte erprte reprte perrte eprrte prerte rperte erprte reprte prrete rprete prrete rprete rrpete rrpete errpte rerpte errpte rerpte rrepte rrepte petrre eptrre pterre tperre etprre teprre pertre eprtre pretre rpetre erptre reptre ptrere tprere prtere rptere trpere rtpere etrpre terpre ertpre retpre trepre rtepre prtree rptree ptrree tprree rtpree trpree prrtee rprtee prrtee rprtee rrptee rrptee ptrree tprree prtree rptree trpree rtpree rtrpee trrpee rrtpee rrtpee trrpee rtrpee ertrpe retrpe etrrpe terrpe rterpe trerpe errtpe rertpe errtpe rertpe rretpe rretpe etrrpe terrpe ertrpe retrpe trerpe rterpe rtrepe trrepe rrtepe rrtepe trrepe rtrepe perert eprert preert rpeert erpert repert peerrt eperrt peerrt eperrt eeprrt eeprrt preert rpeert perert eprert repert erpert ereprt reeprt eerprt eerprt reeprt ereprt perret eprret preret rperet erpret repret perret eprret preret rperet erpret repret prreet rpreet prreet rpreet rrpeet rrpeet errpet rerpet errpet rerpet rrepet rrepet peerrt eperrt peerrt eperrt eeprrt eeprrt perert eprert preert rpeert erpert repert perert eprert preert rpeert erpert repert eerprt eerprt ereprt reeprt ereprt reeprt preret rperet perret eprret repret erpret prreet rpreet prreet rpreet rrpeet rrpeet perret eprret preret rperet erpret repret rerpet errpet rrepet rrepet errpet rerpet ererpt reerpt eerrpt eerrpt reerpt ererpt errept rerept errept rerept rreept rreept eerrpt eerrpt ererpt reerpt ererpt reerpt rerept errept rreept rreept errept rerept peterr epterr pteerr tpeerr etperr teperr peetrr epetrr peetrr epetrr eeptrr eeptrr pteerr tpeerr peterr epterr teperr etperr eteprr teeprr eetprr eetprr teeprr eteprr petrer eptrer pterer tperer etprer teprer perter eprter preter rpeter erpter repter ptreer tpreer prteer rpteer trpeer rtpeer etrper terper ertper retper treper rteper peertr epertr peertr epertr eeprtr eeprtr peretr epretr preetr rpeetr erpetr repetr peretr epretr preetr rpeetr erpetr repetr eerptr eerptr ereptr reeptr ereptr reeptr pterer tperer petrer eptrer teprer etprer ptreer tpreer prteer rpteer trpeer rtpeer perter eprter preter rpeter erpter repter terper etrper treper rteper ertper retper eterpr teerpr eetrpr eetrpr teerpr eterpr etrepr terepr ertepr retepr treepr rteepr eertpr eertpr eretpr reetpr eretpr reetpr terepr etrepr treepr rteepr ertepr retepr prtere rptere ptrere tprere rtpere trpere pretre rpetre pertre eprtre reptre erptre pterre tperre petrre eptrre teprre etprre rtepre trepre retpre ertpre terpre etrpre prtree rptree ptrree tprree rtpree trpree prrtee rprtee prrtee rprtee rrptee rrptee ptrree tprree prtree rptree trpree rtpree rtrpee trrpee rrtpee rrtpee trrpee rtrpee prerte rperte perrte eprrte reprte erprte prrete rprete prrete rprete rrpete rrpete perrte eprrte prerte rperte erprte reprte rerpte errpte rrepte rrepte errpte rerpte pterre tperre petrre eptrre teprre etprre ptrere tprere prtere rptere trpere rtpere pertre eprtre pretre rpetre erptre reptre terpre etrpre trepre rtepre ertpre retpre rterpe trerpe retrpe ertrpe terrpe etrrpe rtrepe trrepe rrtepe rrtepe trrepe rtrepe rertpe errtpe rretpe rretpe errtpe rertpe terrpe etrrpe trerpe rterpe ertrpe retrpe erterp reterp etrerp tererp rteerp treerp eretrp reetrp eertrp eertrp reetrp eretrp eterrp teerrp eetrrp eetrrp teerrp eterrp rteerp treerp reterp erterp tererp etrerp ertrep retrep etrrep terrep rterep trerep errtep rertep errtep rertep rretep rretep etrrep terrep ertrep retrep trerep rterep rtreep trreep rrteep rrteep trreep rtreep erertp reertp eerrtp eerrtp reertp erertp erretp reretp erretp reretp rreetp rreetp eerrtp eerrtp erertp reertp erertp reertp reretp erretp rreetp rreetp erretp reretp eterrp teerrp eetrrp eetrrp teerrp eterrp etrerp tererp erterp reterp treerp rteerp eertrp eertrp eretrp reetrp eretrp reetrp tererp etrerp treerp rteerp erterp reterp rterep trerep retrep ertrep terrep etrrep rtreep trreep rrteep rrteep trreep rtreep rertep errtep rretep rretep errtep rertep terrep etrrep trerep rterep ertrep retrep
Note: these 'words' (valid or invalid) are all the permutations of the word perter. These words are obtained by scrambling the letters in perter.