arched rached acrhed carhed rcahed crahed arhced rahced ahrced harced rhaced hraced achred cahred ahcred hacred chared hcared rchaed crhaed rhcaed hrcaed chraed hcraed arcehd racehd acrehd carehd rcaehd craehd arechd raechd aerchd earchd reachd erachd acerhd caerhd aecrhd eacrhd cearhd ecarhd rceahd creahd recahd ercahd cerahd ecrahd arhecd rahecd ahrecd harecd rhaecd hraecd arehcd raehcd aerhcd earhcd reahcd erahcd ahercd haercd aehrcd eahrcd hearcd eharcd rheacd hreacd rehacd erhacd heracd ehracd acherd caherd ahcerd hacerd chaerd hcaerd acehrd caehrd aechrd eachrd ceahrd ecahrd ahecrd haecrd aehcrd eahcrd heacrd ehacrd cheard hceard cehard echard hecard ehcard rchead crhead rhcead hrcead chread hcread rcehad crehad rechad erchad cerhad ecrhad rhecad hrecad rehcad erhcad hercad ehrcad cherad hcerad cehrad echrad hecrad ehcrad archde rachde acrhde carhde rcahde crahde arhcde rahcde ahrcde harcde rhacde hracde achrde cahrde ahcrde hacrde charde hcarde rchade crhade rhcade hrcade chrade hcrade arcdhe racdhe acrdhe cardhe rcadhe cradhe ardche radche adrche darche rdache drache acdrhe cadrhe adcrhe dacrhe cdarhe dcarhe rcdahe crdahe rdcahe drcahe cdrahe dcrahe arhdce rahdce ahrdce hardce rhadce hradce ardhce radhce adrhce darhce rdahce drahce ahdrce hadrce adhrce dahrce hdarce dharce rhdace hrdace rdhace drhace hdrace dhrace achdre cahdre ahcdre hacdre chadre hcadre acdhre cadhre adchre dachre cdahre dcahre ahdcre hadcre adhcre dahcre hdacre dhacre chdare hcdare cdhare dchare hdcare dhcare rchdae crhdae rhcdae hrcdae chrdae hcrdae rcdhae crdhae rdchae drchae cdrhae dcrhae rhdcae hrdcae rdhcae drhcae hdrcae dhrcae chdrae hcdrae cdhrae dchrae hdcrae dhcrae arcedh racedh acredh caredh rcaedh craedh arecdh raecdh aercdh earcdh reacdh eracdh acerdh caerdh aecrdh eacrdh ceardh ecardh rceadh creadh recadh ercadh ceradh ecradh arcdeh racdeh acrdeh cardeh rcadeh cradeh ardceh radceh adrceh darceh rdaceh draceh acdreh cadreh adcreh dacreh cdareh dcareh rcdaeh crdaeh rdcaeh drcaeh cdraeh dcraeh aredch raedch aerdch eardch readch eradch ardech radech adrech darech rdaech draech aedrch eadrch aderch daerch edarch dearch redach erdach rdeach dreach edrach derach acedrh caedrh aecdrh eacdrh ceadrh ecadrh acderh caderh adcerh dacerh cdaerh dcaerh aedcrh eadcrh adecrh daecrh edacrh deacrh cedarh ecdarh cdearh dcearh edcarh decarh rcedah credah recdah ercdah cerdah ecrdah rcdeah crdeah rdceah drceah cdreah dcreah redcah erdcah rdecah drecah edrcah dercah cedrah ecdrah cderah dcerah edcrah decrah arhedc rahedc ahredc haredc rhaedc hraedc arehdc raehdc aerhdc earhdc reahdc erahdc aherdc haerdc aehrdc eahrdc heardc ehardc rheadc hreadc rehadc erhadc heradc ehradc arhdec rahdec ahrdec hardec rhadec hradec ardhec radhec adrhec darhec rdahec drahec ahdrec hadrec adhrec dahrec hdarec dharec rhdaec hrdaec rdhaec drhaec hdraec dhraec aredhc raedhc aerdhc eardhc readhc eradhc ardehc radehc adrehc darehc rdaehc draehc aedrhc eadrhc aderhc daerhc edarhc dearhc redahc erdahc rdeahc dreahc edrahc derahc ahedrc haedrc aehdrc eahdrc headrc ehadrc ahderc haderc adherc daherc hdaerc dhaerc aedhrc eadhrc adehrc daehrc edahrc deahrc hedarc ehdarc hdearc dhearc edharc deharc rhedac hredac rehdac erhdac herdac ehrdac rhdeac hrdeac rdheac drheac hdreac dhreac redhac erdhac rdehac drehac edrhac derhac hedrac ehdrac hderac dherac edhrac dehrac achedr cahedr ahcedr hacedr chaedr hcaedr acehdr caehdr aechdr eachdr ceahdr ecahdr ahecdr haecdr aehcdr eahcdr heacdr ehacdr cheadr hceadr cehadr echadr hecadr ehcadr achder cahder ahcder hacder chader hcader acdher cadher adcher dacher cdaher dcaher ahdcer hadcer adhcer dahcer hdacer dhacer chdaer hcdaer cdhaer dchaer hdcaer dhcaer acedhr caedhr aecdhr eacdhr ceadhr ecadhr acdehr cadehr adcehr dacehr cdaehr dcaehr aedchr eadchr adechr daechr edachr deachr cedahr ecdahr cdeahr dceahr edcahr decahr ahedcr haedcr aehdcr eahdcr headcr ehadcr ahdecr hadecr adhecr dahecr hdaecr dhaecr aedhcr eadhcr adehcr daehcr edahcr deahcr hedacr ehdacr hdeacr dheacr edhacr dehacr chedar hcedar cehdar echdar hecdar ehcdar chdear hcdear cdhear dchear hdcear dhcear cedhar ecdhar cdehar dcehar edchar dechar hedcar ehdcar hdecar dhecar edhcar dehcar rcheda crheda rhceda hrceda chreda hcreda rcehda crehda rechda erchda cerhda ecrhda rhecda hrecda rehcda erhcda hercda ehrcda cherda hcerda cehrda echrda hecrda ehcrda rchdea crhdea rhcdea hrcdea chrdea hcrdea rcdhea crdhea rdchea drchea cdrhea dcrhea rhdcea hrdcea rdhcea drhcea hdrcea dhrcea chdrea hcdrea cdhrea dchrea hdcrea dhcrea rcedha credha recdha ercdha cerdha ecrdha rcdeha crdeha rdceha drceha cdreha dcreha redcha erdcha rdecha drecha edrcha dercha cedrha ecdrha cderha dcerha edcrha decrha rhedca hredca rehdca erhdca herdca ehrdca rhdeca hrdeca rdheca drheca hdreca dhreca redhca erdhca rdehca drehca edrhca derhca hedrca ehdrca hderca dherca edhrca dehrca chedra hcedra cehdra echdra hecdra ehcdra chdera hcdera cdhera dchera hdcera dhcera cedhra ecdhra cdehra dcehra edchra dechra hedcra ehdcra hdecra dhecra edhcra dehcra
Note: these 'words' (valid or invalid) are all the permutations of the word arched. These words are obtained by scrambling the letters in arched.