dreich rdeich derich edrich redich erdich driech rdiech direch idrech ridech irdech deirch edirch dierch iderch eidrch iedrch reidch eridch riedch iredch eirdch ierdch drecih rdecih dercih edrcih redcih erdcih drceih rdceih dcreih cdreih rcdeih crdeih decrih edcrih dcerih cderih ecdrih cedrih recdih ercdih rcedih credih ecrdih cerdih driceh rdiceh dirceh idrceh ridceh irdceh drcieh rdcieh dcrieh cdrieh rcdieh crdieh dicreh idcreh dcireh cdireh icdreh cidreh ricdeh ircdeh rcideh crideh icrdeh cirdeh deicrh edicrh diecrh idecrh eidcrh iedcrh decirh edcirh dceirh cdeirh ecdirh cedirh dicerh idcerh dcierh cdierh icderh ciderh eicdrh iecdrh ecidrh ceidrh icedrh ciedrh reicdh ericdh riecdh irecdh eircdh iercdh recidh ercidh rceidh creidh ecridh ceridh ricedh ircedh rciedh criedh icredh ciredh eicrdh iecrdh ecirdh ceirdh icerdh cierdh dreihc rdeihc derihc edrihc redihc erdihc driehc rdiehc direhc idrehc ridehc irdehc deirhc edirhc dierhc iderhc eidrhc iedrhc reidhc eridhc riedhc iredhc eirdhc ierdhc drehic rdehic derhic edrhic redhic erdhic drheic rdheic dhreic hdreic rhdeic hrdeic dehric edhric dheric hderic ehdric hedric rehdic erhdic rhedic hredic ehrdic herdic drihec rdihec dirhec idrhec ridhec irdhec drhiec rdhiec dhriec hdriec rhdiec hrdiec dihrec idhrec dhirec hdirec ihdrec hidrec rihdec irhdec rhidec hridec ihrdec hirdec deihrc edihrc diehrc idehrc eidhrc iedhrc dehirc edhirc dheirc hdeirc ehdirc hedirc diherc idherc dhierc hdierc ihderc hiderc eihdrc iehdrc ehidrc heidrc ihedrc hiedrc reihdc erihdc riehdc irehdc eirhdc ierhdc rehidc erhidc rheidc hreidc ehridc heridc rihedc irhedc rhiedc hriedc ihredc hiredc eihrdc iehrdc ehirdc heirdc iherdc hierdc drechi rdechi derchi edrchi redchi erdchi drcehi rdcehi dcrehi cdrehi rcdehi crdehi decrhi edcrhi dcerhi cderhi ecdrhi cedrhi recdhi ercdhi rcedhi credhi ecrdhi cerdhi drehci rdehci derhci edrhci redhci erdhci drheci rdheci dhreci hdreci rhdeci hrdeci dehrci edhrci dherci hderci ehdrci hedrci rehdci erhdci rhedci hredci ehrdci herdci drchei rdchei dcrhei cdrhei rcdhei crdhei drhcei rdhcei dhrcei hdrcei rhdcei hrdcei dchrei cdhrei dhcrei hdcrei chdrei hcdrei rchdei crhdei rhcdei hrcdei chrdei hcrdei dechri edchri dcehri cdehri ecdhri cedhri dehcri edhcri dhecri hdecri ehdcri hedcri dcheri cdheri dhceri hdceri chderi hcderi echdri cehdri ehcdri hecdri chedri hcedri rechdi erchdi rcehdi crehdi ecrhdi cerhdi rehcdi erhcdi rhecdi hrecdi ehrcdi hercdi rchedi crhedi rhcedi hrcedi chredi hcredi echrdi cehrdi ehcrdi hecrdi cherdi hcerdi driche rdiche dirche idrche ridche irdche drcihe rdcihe dcrihe cdrihe rcdihe crdihe dicrhe idcrhe dcirhe cdirhe icdrhe cidrhe ricdhe ircdhe rcidhe cridhe icrdhe cirdhe drihce rdihce dirhce idrhce ridhce irdhce drhice rdhice dhrice hdrice rhdice hrdice dihrce idhrce dhirce hdirce ihdrce hidrce rihdce irhdce rhidce hridce ihrdce hirdce drchie rdchie dcrhie cdrhie rcdhie crdhie drhcie rdhcie dhrcie hdrcie rhdcie hrdcie dchrie cdhrie dhcrie hdcrie chdrie hcdrie rchdie crhdie rhcdie hrcdie chrdie hcrdie dichre idchre dcihre cdihre icdhre cidhre dihcre idhcre dhicre hdicre ihdcre hidcre dchire cdhire dhcire hdcire chdire hcdire ichdre cihdre ihcdre hicdre chidre hcidre richde irchde rcihde crihde icrhde cirhde rihcde irhcde rhicde hricde ihrcde hircde rchide crhide rhcide hrcide chride hcride ichrde cihrde ihcrde hicrde chirde hcirde deichr edichr diechr idechr eidchr iedchr decihr edcihr dceihr cdeihr ecdihr cedihr dicehr idcehr dciehr cdiehr icdehr cidehr eicdhr iecdhr ecidhr ceidhr icedhr ciedhr deihcr edihcr diehcr idehcr eidhcr iedhcr dehicr edhicr dheicr hdeicr ehdicr hedicr dihecr idhecr dhiecr hdiecr ihdecr hidecr eihdcr iehdcr ehidcr heidcr ihedcr hiedcr dechir edchir dcehir cdehir ecdhir cedhir dehcir edhcir dhecir hdecir ehdcir hedcir dcheir cdheir dhceir hdceir chdeir hcdeir echdir cehdir ehcdir hecdir chedir hcedir dicher idcher dciher cdiher icdher cidher dihcer idhcer dhicer hdicer ihdcer hidcer dchier cdhier dhcier hdcier chdier hcdier ichder cihder ihcder hicder chider hcider eichdr iechdr ecihdr ceihdr icehdr ciehdr eihcdr iehcdr ehicdr heicdr ihecdr hiecdr echidr cehidr ehcidr hecidr cheidr hceidr ichedr cihedr ihcedr hicedr chiedr hciedr reichd erichd riechd irechd eirchd ierchd recihd ercihd rceihd creihd ecrihd cerihd ricehd ircehd rciehd criehd icrehd cirehd eicrhd iecrhd ecirhd ceirhd icerhd cierhd reihcd erihcd riehcd irehcd eirhcd ierhcd rehicd erhicd rheicd hreicd ehricd hericd rihecd irhecd rhiecd hriecd ihrecd hirecd eihrcd iehrcd ehircd heircd ihercd hiercd rechid erchid rcehid crehid ecrhid cerhid rehcid erhcid rhecid hrecid ehrcid hercid rcheid crheid rhceid hrceid chreid hcreid echrid cehrid ehcrid hecrid cherid hcerid riched irched rcihed crihed icrhed cirhed rihced irhced rhiced hriced ihrced hirced rchied crhied rhcied hrcied chried hcried ichred cihred ihcred hicred chired hcired eichrd iechrd ecihrd ceihrd icehrd ciehrd eihcrd iehcrd ehicrd heicrd ihecrd hiecrd echird cehird ehcird hecird cheird hceird icherd ciherd ihcerd hicerd chierd hcierd
Note: these 'words' (valid or invalid) are all the permutations of the word dreich. These words are obtained by scrambling the letters in dreich.