daring adring draing rdaing arding rading dairng adirng diarng idarng aidrng iadrng driang rdiang dirang idrang ridang irdang aridng raidng airdng iardng riadng iradng darnig adrnig dranig rdanig ardnig radnig danrig adnrig dnarig ndarig andrig nadrig drnaig rdnaig dnraig ndraig rndaig nrdaig arndig randig anrdig nardig rnadig nradig dainrg adinrg dianrg idanrg aidnrg iadnrg danirg adnirg dnairg ndairg andirg nadirg dinarg idnarg dniarg ndiarg indarg nidarg aindrg iandrg anidrg naidrg inadrg niadrg drinag rdinag dirnag idrnag ridnag irdnag drniag rdniag dnriag ndriag rndiag nrdiag dinrag idnrag dnirag ndirag indrag nidrag rindag irndag rnidag nridag inrdag nirdag arindg raindg airndg iarndg riandg irandg arnidg ranidg anridg naridg rnaidg nraidg ainrdg ianrdg anirdg nairdg inardg niardg rinadg irnadg rniadg nriadg inradg niradg darign adrign draign rdaign ardign radign dairgn adirgn diargn idargn aidrgn iadrgn driagn rdiagn diragn idragn ridagn irdagn aridgn raidgn airdgn iardgn riadgn iradgn dargin adrgin dragin rdagin ardgin radgin dagrin adgrin dgarin gdarin agdrin gadrin drgain rdgain dgrain gdrain rgdain grdain argdin ragdin agrdin gardin rgadin gradin daigrn adigrn diagrn idagrn aidgrn iadgrn dagirn adgirn dgairn gdairn agdirn gadirn digarn idgarn dgiarn gdiarn igdarn gidarn aigdrn iagdrn agidrn gaidrn igadrn giadrn drigan rdigan dirgan idrgan ridgan irdgan drgian rdgian dgrian gdrian rgdian grdian digran idgran dgiran gdiran igdran gidran rigdan irgdan rgidan gridan igrdan girdan arigdn raigdn airgdn iargdn riagdn iragdn argidn ragidn agridn garidn rgaidn graidn aigrdn iagrdn agirdn gairdn igardn giardn rigadn irgadn rgiadn griadn igradn giradn darngi adrngi drangi rdangi ardngi radngi danrgi adnrgi dnargi ndargi andrgi nadrgi drnagi rdnagi dnragi ndragi rndagi nrdagi arndgi randgi anrdgi nardgi rnadgi nradgi dargni adrgni dragni rdagni ardgni radgni dagrni adgrni dgarni gdarni agdrni gadrni drgani rdgani dgrani gdrani rgdani grdani argdni ragdni agrdni gardni rgadni gradni dangri adngri dnagri ndagri andgri nadgri dagnri adgnri dganri gdanri agdnri gadnri dngari ndgari dgnari gdnari ngdari gndari angdri nagdri agndri gandri ngadri gnadri drngai rdngai dnrgai ndrgai rndgai nrdgai drgnai rdgnai dgrnai gdrnai rgdnai grdnai dngrai ndgrai dgnrai gdnrai ngdrai gndrai rngdai nrgdai rgndai grndai ngrdai gnrdai arngdi rangdi anrgdi nargdi rnagdi nragdi argndi ragndi agrndi garndi rgandi grandi angrdi nagrdi agnrdi ganrdi ngardi gnardi rngadi nrgadi rgnadi grnadi ngradi gnradi daingr adingr diangr idangr aidngr iadngr danigr adnigr dnaigr ndaigr andigr nadigr dinagr idnagr dniagr ndiagr indagr nidagr aindgr iandgr anidgr naidgr inadgr niadgr daignr adignr diagnr idagnr aidgnr iadgnr daginr adginr dgainr gdainr agdinr gadinr diganr idganr dgianr gdianr igdanr gidanr aigdnr iagdnr agidnr gaidnr igadnr giadnr dangir adngir dnagir ndagir andgir nadgir dagnir adgnir dganir gdanir agdnir gadnir dngair ndgair dgnair gdnair ngdair gndair angdir nagdir agndir gandir ngadir gnadir dingar idngar dnigar ndigar indgar nidgar dignar idgnar dginar gdinar igdnar gidnar dngiar ndgiar dgniar gdniar ngdiar gndiar ingdar nigdar igndar gindar ngidar gnidar aingdr iangdr anigdr naigdr inagdr niagdr aigndr iagndr agindr gaindr igandr giandr angidr nagidr agnidr ganidr ngaidr gnaidr ingadr nigadr ignadr ginadr ngiadr gniadr dringa rdinga dirnga idrnga ridnga irdnga drniga rdniga dnriga ndriga rndiga nrdiga dinrga idnrga dnirga ndirga indrga nidrga rindga irndga rnidga nridga inrdga nirdga drigna rdigna dirgna idrgna ridgna irdgna drgina rdgina dgrina gdrina rgdina grdina digrna idgrna dgirna gdirna igdrna gidrna rigdna irgdna rgidna gridna igrdna girdna drngia rdngia dnrgia ndrgia rndgia nrdgia drgnia rdgnia dgrnia gdrnia rgdnia grdnia dngria ndgria dgnria gdnria ngdria gndria rngdia nrgdia rgndia grndia ngrdia gnrdia dingra idngra dnigra ndigra indgra nidgra dignra idgnra dginra gdinra igdnra gidnra dngira ndgira dgnira gdnira ngdira gndira ingdra nigdra igndra gindra ngidra gnidra ringda irngda rnigda nrigda inrgda nirgda rignda irgnda rginda grinda igrnda girnda rngida nrgida rgnida grnida ngrida gnrida ingrda nigrda ignrda ginrda ngirda gnirda aringd raingd airngd iarngd riangd irangd arnigd ranigd anrigd narigd rnaigd nraigd ainrgd ianrgd anirgd nairgd inargd niargd rinagd irnagd rniagd nriagd inragd niragd arignd raignd airgnd iargnd riagnd iragnd argind ragind agrind garind rgaind graind aigrnd iagrnd agirnd gairnd igarnd giarnd rigand irgand rgiand griand igrand girand arngid rangid anrgid nargid rnagid nragid argnid ragnid agrnid garnid rganid granid angrid nagrid agnrid ganrid ngarid gnarid rngaid nrgaid rgnaid grnaid ngraid gnraid aingrd iangrd anigrd naigrd inagrd niagrd aignrd iagnrd aginrd gainrd iganrd gianrd angird nagird agnird ganird ngaird gnaird ingard nigard ignard ginard ngiard gniard ringad irngad rnigad nrigad inrgad nirgad rignad irgnad rginad grinad igrnad girnad rngiad nrgiad rgniad grniad ngriad gnriad ingrad nigrad ignrad ginrad ngirad gnirad
Note: these 'words' (valid or invalid) are all the permutations of the word daring. These words are obtained by scrambling the letters in daring.