droich rdoich dorich odrich rodich ordich drioch rdioch diroch idroch ridoch irdoch doirch odirch diorch idorch oidrch iodrch roidch oridch riodch irodch oirdch iordch drocih rdocih dorcih odrcih rodcih ordcih drcoih rdcoih dcroih cdroih rcdoih crdoih docrih odcrih dcorih cdorih ocdrih codrih rocdih orcdih rcodih crodih ocrdih cordih dricoh rdicoh dircoh idrcoh ridcoh irdcoh drcioh rdcioh dcrioh cdrioh rcdioh crdioh dicroh idcroh dciroh cdiroh icdroh cidroh ricdoh ircdoh rcidoh cridoh icrdoh cirdoh doicrh odicrh diocrh idocrh oidcrh iodcrh docirh odcirh dcoirh cdoirh ocdirh codirh dicorh idcorh dciorh cdiorh icdorh cidorh oicdrh iocdrh ocidrh coidrh icodrh ciodrh roicdh oricdh riocdh irocdh oircdh iorcdh rocidh orcidh rcoidh croidh ocridh coridh ricodh ircodh rciodh criodh icrodh cirodh oicrdh iocrdh ocirdh coirdh icordh ciordh droihc rdoihc dorihc odrihc rodihc ordihc driohc rdiohc dirohc idrohc ridohc irdohc doirhc odirhc diorhc idorhc oidrhc iodrhc roidhc oridhc riodhc irodhc oirdhc iordhc drohic rdohic dorhic odrhic rodhic ordhic drhoic rdhoic dhroic hdroic rhdoic hrdoic dohric odhric dhoric hdoric ohdric hodric rohdic orhdic rhodic hrodic ohrdic hordic drihoc rdihoc dirhoc idrhoc ridhoc irdhoc drhioc rdhioc dhrioc hdrioc rhdioc hrdioc dihroc idhroc dhiroc hdiroc ihdroc hidroc rihdoc irhdoc rhidoc hridoc ihrdoc hirdoc doihrc odihrc diohrc idohrc oidhrc iodhrc dohirc odhirc dhoirc hdoirc ohdirc hodirc dihorc idhorc dhiorc hdiorc ihdorc hidorc oihdrc iohdrc ohidrc hoidrc ihodrc hiodrc roihdc orihdc riohdc irohdc oirhdc iorhdc rohidc orhidc rhoidc hroidc ohridc horidc rihodc irhodc rhiodc hriodc ihrodc hirodc oihrdc iohrdc ohirdc hoirdc ihordc hiordc drochi rdochi dorchi odrchi rodchi ordchi drcohi rdcohi dcrohi cdrohi rcdohi crdohi docrhi odcrhi dcorhi cdorhi ocdrhi codrhi rocdhi orcdhi rcodhi crodhi ocrdhi cordhi drohci rdohci dorhci odrhci rodhci ordhci drhoci rdhoci dhroci hdroci rhdoci hrdoci dohrci odhrci dhorci hdorci ohdrci hodrci rohdci orhdci rhodci hrodci ohrdci hordci drchoi rdchoi dcrhoi cdrhoi rcdhoi crdhoi drhcoi rdhcoi dhrcoi hdrcoi rhdcoi hrdcoi dchroi cdhroi dhcroi hdcroi chdroi hcdroi rchdoi crhdoi rhcdoi hrcdoi chrdoi hcrdoi dochri odchri dcohri cdohri ocdhri codhri dohcri odhcri dhocri hdocri ohdcri hodcri dchori cdhori dhcori hdcori chdori hcdori ochdri cohdri ohcdri hocdri chodri hcodri rochdi orchdi rcohdi crohdi ocrhdi corhdi rohcdi orhcdi rhocdi hrocdi ohrcdi horcdi rchodi crhodi rhcodi hrcodi chrodi hcrodi ochrdi cohrdi ohcrdi hocrdi chordi hcordi dricho rdicho dircho idrcho ridcho irdcho drciho rdciho dcriho cdriho rcdiho crdiho dicrho idcrho dcirho cdirho icdrho cidrho ricdho ircdho rcidho cridho icrdho cirdho drihco rdihco dirhco idrhco ridhco irdhco drhico rdhico dhrico hdrico rhdico hrdico dihrco idhrco dhirco hdirco ihdrco hidrco rihdco irhdco rhidco hridco ihrdco hirdco drchio rdchio dcrhio cdrhio rcdhio crdhio drhcio rdhcio dhrcio hdrcio rhdcio hrdcio dchrio cdhrio dhcrio hdcrio chdrio hcdrio rchdio crhdio rhcdio hrcdio chrdio hcrdio dichro idchro dcihro cdihro icdhro cidhro dihcro idhcro dhicro hdicro ihdcro hidcro dchiro cdhiro dhciro hdciro chdiro hcdiro ichdro cihdro ihcdro hicdro chidro hcidro richdo irchdo rcihdo crihdo icrhdo cirhdo rihcdo irhcdo rhicdo hricdo ihrcdo hircdo rchido crhido rhcido hrcido chrido hcrido ichrdo cihrdo ihcrdo hicrdo chirdo hcirdo doichr odichr diochr idochr oidchr iodchr docihr odcihr dcoihr cdoihr ocdihr codihr dicohr idcohr dciohr cdiohr icdohr cidohr oicdhr iocdhr ocidhr coidhr icodhr ciodhr doihcr odihcr diohcr idohcr oidhcr iodhcr dohicr odhicr dhoicr hdoicr ohdicr hodicr dihocr idhocr dhiocr hdiocr ihdocr hidocr oihdcr iohdcr ohidcr hoidcr ihodcr hiodcr dochir odchir dcohir cdohir ocdhir codhir dohcir odhcir dhocir hdocir ohdcir hodcir dchoir cdhoir dhcoir hdcoir chdoir hcdoir ochdir cohdir ohcdir hocdir chodir hcodir dichor idchor dcihor cdihor icdhor cidhor dihcor idhcor dhicor hdicor ihdcor hidcor dchior cdhior dhcior hdcior chdior hcdior ichdor cihdor ihcdor hicdor chidor hcidor oichdr iochdr ocihdr coihdr icohdr ciohdr oihcdr iohcdr ohicdr hoicdr ihocdr hiocdr ochidr cohidr ohcidr hocidr choidr hcoidr ichodr cihodr ihcodr hicodr chiodr hciodr roichd orichd riochd irochd oirchd iorchd rocihd orcihd rcoihd croihd ocrihd corihd ricohd ircohd rciohd criohd icrohd cirohd oicrhd iocrhd ocirhd coirhd icorhd ciorhd roihcd orihcd riohcd irohcd oirhcd iorhcd rohicd orhicd rhoicd hroicd ohricd horicd rihocd irhocd rhiocd hriocd ihrocd hirocd oihrcd iohrcd ohircd hoircd ihorcd hiorcd rochid orchid rcohid crohid ocrhid corhid rohcid orhcid rhocid hrocid ohrcid horcid rchoid crhoid rhcoid hrcoid chroid hcroid ochrid cohrid ohcrid hocrid chorid hcorid richod irchod rcihod crihod icrhod cirhod rihcod irhcod rhicod hricod ihrcod hircod rchiod crhiod rhciod hrciod chriod hcriod ichrod cihrod ihcrod hicrod chirod hcirod oichrd iochrd ocihrd coihrd icohrd ciohrd oihcrd iohcrd ohicrd hoicrd ihocrd hiocrd ochird cohird ohcird hocird choird hcoird ichord cihord ihcord hicord chiord hciord
Note: these 'words' (valid or invalid) are all the permutations of the word droich. These words are obtained by scrambling the letters in droich.