darker adrker draker rdaker ardker radker dakrer adkrer dkarer kdarer akdrer kadrer drkaer rdkaer dkraer kdraer rkdaer krdaer arkder rakder akrder karder rkader krader darekr adrekr draekr rdaekr ardekr radekr daerkr aderkr dearkr edarkr aedrkr eadrkr dreakr rdeakr derakr edrakr redakr erdakr aredkr raedkr aerdkr eardkr readkr eradkr dakerr adkerr dkaerr kdaerr akderr kaderr daekrr adekrr deakrr edakrr aedkrr eadkrr dkearr kdearr dekarr edkarr kedarr ekdarr akedrr kaedrr aekdrr eakdrr keadrr ekadrr drkear rdkear dkrear kdrear rkdear krdear drekar rdekar derkar edrkar redkar erdkar dkerar kderar dekrar edkrar kedrar ekdrar rkedar kredar rekdar erkdar kerdar ekrdar arkedr rakedr akredr karedr rkaedr kraedr arekdr raekdr aerkdr earkdr reakdr erakdr akerdr kaerdr aekrdr eakrdr keardr ekardr rkeadr kreadr rekadr erkadr keradr ekradr darkre adrkre drakre rdakre ardkre radkre dakrre adkrre dkarre kdarre akdrre kadrre drkare rdkare dkrare kdrare rkdare krdare arkdre rakdre akrdre kardre rkadre kradre darrke adrrke drarke rdarke ardrke radrke darrke adrrke drarke rdarke ardrke radrke drrake rdrake drrake rdrake rrdake rrdake arrdke rardke arrdke rardke rradke rradke dakrre adkrre dkarre kdarre akdrre kadrre darkre adrkre drakre rdakre ardkre radkre dkrare kdrare drkare rdkare krdare rkdare akrdre kardre arkdre rakdre kradre rkadre drkrae rdkrae dkrrae kdrrae rkdrae krdrae drrkae rdrkae drrkae rdrkae rrdkae rrdkae dkrrae kdrrae drkrae rdkrae krdrae rkdrae rkrdae krrdae rrkdae rrkdae krrdae rkrdae arkrde rakrde akrrde karrde rkarde krarde arrkde rarkde arrkde rarkde rrakde rrakde akrrde karrde arkrde rakrde krarde rkarde rkrade krrade rrkade rrkade krrade rkrade darerk adrerk draerk rdaerk arderk raderk daerrk aderrk dearrk edarrk aedrrk eadrrk dreark rdeark derark edrark redark erdark aredrk raedrk aerdrk eardrk readrk eradrk darrek adrrek drarek rdarek ardrek radrek darrek adrrek drarek rdarek ardrek radrek drraek rdraek drraek rdraek rrdaek rrdaek arrdek rardek arrdek rardek rradek rradek daerrk aderrk dearrk edarrk aedrrk eadrrk darerk adrerk draerk rdaerk arderk raderk derark edrark dreark rdeark erdark redark aerdrk eardrk aredrk raedrk eradrk readrk drerak rderak derrak edrrak redrak erdrak drreak rdreak drreak rdreak rrdeak rrdeak derrak edrrak drerak rderak erdrak redrak rerdak errdak rredak rredak errdak rerdak arerdk raerdk aerrdk earrdk reardk erardk arredk raredk arredk raredk rraedk rraedk aerrdk earrdk arerdk raerdk erardk reardk reradk erradk rreadk rreadk erradk reradk dakerr adkerr dkaerr kdaerr akderr kaderr daekrr adekrr deakrr edakrr aedkrr eadkrr dkearr kdearr dekarr edkarr kedarr ekdarr akedrr kaedrr aekdrr eakdrr keadrr ekadrr dakrer adkrer dkarer kdarer akdrer kadrer darker adrker draker rdaker ardker radker dkraer kdraer drkaer rdkaer krdaer rkdaer akrder karder arkder rakder krader rkader daerkr aderkr dearkr edarkr aedrkr eadrkr darekr adrekr draekr rdaekr ardekr radekr derakr edrakr dreakr rdeakr erdakr redakr aerdkr eardkr aredkr raedkr eradkr readkr dkerar kderar dekrar edkrar kedrar ekdrar dkrear kdrear drkear rdkear krdear rkdear derkar edrkar drekar rdekar erdkar redkar kerdar ekrdar kredar rkedar erkdar rekdar akerdr kaerdr aekrdr eakrdr keardr ekardr akredr karedr arkedr rakedr kraedr rkaedr aerkdr earkdr arekdr raekdr erakdr reakdr keradr ekradr kreadr rkeadr erkadr rekadr drkera rdkera dkrera kdrera rkdera krdera drekra rdekra derkra edrkra redkra erdkra dkerra kderra dekrra edkrra kedrra ekdrra rkedra kredra rekdra erkdra kerdra ekrdra drkrea rdkrea dkrrea kdrrea rkdrea krdrea drrkea rdrkea drrkea rdrkea rrdkea rrdkea dkrrea kdrrea drkrea rdkrea krdrea rkdrea rkrdea krrdea rrkdea rrkdea krrdea rkrdea drerka rderka derrka edrrka redrka erdrka drreka rdreka drreka rdreka rrdeka rrdeka derrka edrrka drerka rderka erdrka redrka rerdka errdka rredka rredka errdka rerdka dkerra kderra dekrra edkrra kedrra ekdrra dkrera kdrera drkera rdkera krdera rkdera derkra edrkra drekra rdekra erdkra redkra kerdra ekrdra kredra rkedra erkdra rekdra rkerda krerda rekrda erkrda kerrda ekrrda rkreda krreda rrkeda rrkeda krreda rkreda rerkda errkda rrekda rrekda errkda rerkda kerrda ekrrda krerda rkerda erkrda rekrda arkerd rakerd akrerd karerd rkaerd kraerd arekrd raekrd aerkrd earkrd reakrd erakrd akerrd kaerrd aekrrd eakrrd kearrd ekarrd rkeard kreard rekard erkard kerard ekrard arkred rakred akrred karred rkared krared arrked rarked arrked rarked rraked rraked akrred karred arkred rakred krared rkared rkraed krraed rrkaed rrkaed krraed rkraed arerkd raerkd aerrkd earrkd rearkd erarkd arrekd rarekd arrekd rarekd rraekd rraekd aerrkd earrkd arerkd raerkd erarkd rearkd rerakd errakd rreakd rreakd errakd rerakd akerrd kaerrd aekrrd eakrrd kearrd ekarrd akrerd karerd arkerd rakerd kraerd rkaerd aerkrd earkrd arekrd raekrd erakrd reakrd kerard ekrard kreard rkeard erkard rekard rkerad krerad rekrad erkrad kerrad ekrrad rkread krread rrkead rrkead krread rkread rerkad errkad rrekad rrekad errkad rerkad kerrad ekrrad krerad rkerad erkrad rekrad
Note: these 'words' (valid or invalid) are all the permutations of the word darker. These words are obtained by scrambling the letters in darker.