cotter octter ctoter tcoter otcter tocter cotter octter ctoter tcoter otcter tocter cttoer tctoer cttoer tctoer ttcoer ttcoer ottcer totcer ottcer totcer ttocer ttocer cotetr octetr ctoetr tcoetr otcetr tocetr coettr ocettr ceottr ecottr oecttr eocttr cteotr tceotr cetotr ectotr tecotr etcotr otectr toectr oetctr eotctr teoctr etoctr cotetr octetr ctoetr tcoetr otcetr tocetr coettr ocettr ceottr ecottr oecttr eocttr cteotr tceotr cetotr ectotr tecotr etcotr otectr toectr oetctr eotctr teoctr etoctr ctteor tcteor ctteor tcteor ttceor ttceor ctetor tcetor cettor ecttor tector etctor ctetor tcetor cettor ecttor tector etctor ttecor ttecor tetcor ettcor tetcor ettcor ottecr totecr ottecr totecr ttoecr ttoecr otetcr toetcr oettcr eottcr teotcr etotcr otetcr toetcr oettcr eottcr teotcr etotcr tteocr tteocr tetocr ettocr tetocr ettocr cottre octtre ctotre tcotre otctre toctre cottre octtre ctotre tcotre otctre toctre cttore tctore cttore tctore ttcore ttcore ottcre totcre ottcre totcre ttocre ttocre cotrte octrte ctorte tcorte otcrte tocrte cortte ocrtte crotte rcotte orctte roctte ctrote tcrote crtote rctote trcote rtcote otrcte torcte ortcte rotcte trocte rtocte cotrte octrte ctorte tcorte otcrte tocrte cortte ocrtte crotte rcotte orctte roctte ctrote tcrote crtote rctote trcote rtcote otrcte torcte ortcte rotcte trocte rtocte cttroe tctroe cttroe tctroe ttcroe ttcroe ctrtoe tcrtoe crttoe rcttoe trctoe rtctoe ctrtoe tcrtoe crttoe rcttoe trctoe rtctoe ttrcoe ttrcoe trtcoe rttcoe trtcoe rttcoe ottrce totrce ottrce totrce ttorce ttorce otrtce tortce orttce rottce trotce rtotce otrtce tortce orttce rottce trotce rtotce ttroce ttroce trtoce rttoce trtoce rttoce cotert octert ctoert tcoert otcert tocert coetrt ocetrt ceotrt ecotrt oectrt eoctrt cteort tceort cetort ectort tecort etcort otecrt toecrt oetcrt eotcrt teocrt etocrt cotret octret ctoret tcoret otcret tocret cortet ocrtet crotet rcotet orctet roctet ctroet tcroet crtoet rctoet trcoet rtcoet otrcet torcet ortcet rotcet trocet rtocet coertt ocertt ceortt ecortt oecrtt eocrtt corett ocrett croett rcoett orcett rocett cerott ecrott creott rceott ercott recott oerctt eorctt orectt roectt eroctt reoctt cterot tcerot cetrot ectrot tecrot etcrot ctreot tcreot crteot rcteot trceot rtceot certot ecrtot cretot rcetot erctot rectot tercot etrcot trecot rtecot ertcot retcot oterct toerct oetrct eotrct teorct etorct otrect torect ortect rotect troect rtoect oertct eortct oretct roetct erotct reotct teroct etroct treoct rteoct ertoct retoct cotert octert ctoert tcoert otcert tocert coetrt ocetrt ceotrt ecotrt oectrt eoctrt cteort tceort cetort ectort tecort etcort otecrt toecrt oetcrt eotcrt teocrt etocrt cotret octret ctoret tcoret otcret tocret cortet ocrtet crotet rcotet orctet roctet ctroet tcroet crtoet rctoet trcoet rtcoet otrcet torcet ortcet rotcet trocet rtocet coertt ocertt ceortt ecortt oecrtt eocrtt corett ocrett croett rcoett orcett rocett cerott ecrott creott rceott ercott recott oerctt eorctt orectt roectt eroctt reoctt cterot tcerot cetrot ectrot tecrot etcrot ctreot tcreot crteot rcteot trceot rtceot certot ecrtot cretot rcetot erctot rectot tercot etrcot trecot rtecot ertcot retcot oterct toerct oetrct eotrct teorct etorct otrect torect ortect rotect troect rtoect oertct eortct oretct roetct erotct reotct teroct etroct treoct rteoct ertoct retoct cttero tctero cttero tctero ttcero ttcero ctetro tcetro cettro ecttro tectro etctro ctetro tcetro cettro ecttro tectro etctro ttecro ttecro tetcro ettcro tetcro ettcro cttreo tctreo cttreo tctreo ttcreo ttcreo ctrteo tcrteo crtteo rctteo trcteo rtcteo ctrteo tcrteo crtteo rctteo trcteo rtcteo ttrceo ttrceo trtceo rttceo trtceo rttceo cterto tcerto cetrto ectrto tecrto etcrto ctreto tcreto crteto rcteto trceto rtceto certto ecrtto cretto rcetto erctto rectto tercto etrcto trecto rtecto ertcto retcto cterto tcerto cetrto ectrto tecrto etcrto ctreto tcreto crteto rcteto trceto rtceto certto ecrtto cretto rcetto erctto rectto tercto etrcto trecto rtecto ertcto retcto tterco tterco tetrco ettrco tetrco ettrco ttreco ttreco trteco rtteco trteco rtteco tertco etrtco tretco rtetco erttco rettco tertco etrtco tretco rtetco erttco rettco otterc toterc otterc toterc ttoerc ttoerc otetrc toetrc oettrc eottrc teotrc etotrc otetrc toetrc oettrc eottrc teotrc etotrc tteorc tteorc tetorc ettorc tetorc ettorc ottrec totrec ottrec totrec ttorec ttorec otrtec tortec orttec rottec trotec rtotec otrtec tortec orttec rottec trotec rtotec ttroec ttroec trtoec rttoec trtoec rttoec otertc toertc oetrtc eotrtc teortc etortc otretc toretc ortetc rotetc troetc rtoetc oerttc eorttc orettc roettc erottc reottc terotc etrotc treotc rteotc ertotc retotc otertc toertc oetrtc eotrtc teortc etortc otretc toretc ortetc rotetc troetc rtoetc oerttc eorttc orettc roettc erottc reottc terotc etrotc treotc rteotc ertotc retotc tteroc tteroc tetroc ettroc tetroc ettroc ttreoc ttreoc trteoc rtteoc trteoc rtteoc tertoc etrtoc tretoc rtetoc erttoc rettoc tertoc etrtoc tretoc rtetoc erttoc rettoc
Note: these 'words' (valid or invalid) are all the permutations of the word cotter. These words are obtained by scrambling the letters in cotter.