umbrae mubrae ubmrae bumrae mburae bmurae umrbae murbae urmbae rumbae mrubae rmubae ubrmae burmae urbmae rubmae brumae rbumae mbruae bmruae mrbuae rmbuae brmuae rbmuae umbare mubare ubmare bumare mbuare bmuare umabre muabre uambre aumbre maubre amubre ubamre buamre uabmre aubmre baumre abumre mbaure bmaure mabure ambure bamure abmure umrabe murabe urmabe rumabe mruabe rmuabe umarbe muarbe uamrbe aumrbe maurbe amurbe urambe ruambe uarmbe aurmbe raumbe arumbe mraube rmaube marube amrube ramube armube ubrame burame urbame rubame bruame rbuame ubarme buarme uabrme aubrme baurme aburme urabme ruabme uarbme aurbme raubme arubme braume rbaume barume abrume rabume arbume mbraue bmraue mrbaue rmbaue brmaue rbmaue mbarue bmarue mabrue ambrue bamrue abmrue mrabue rmabue marbue amrbue rambue armbue bramue rbamue barmue abrmue rabmue arbmue umbrea mubrea ubmrea bumrea mburea bmurea umrbea murbea urmbea rumbea mrubea rmubea ubrmea burmea urbmea rubmea brumea rbumea mbruea bmruea mrbuea rmbuea brmuea rbmuea umbera mubera ubmera bumera mbuera bmuera umebra muebra uembra eumbra meubra emubra ubemra buemra uebmra eubmra beumra ebumra mbeura bmeura mebura embura bemura ebmura umreba mureba urmeba rumeba mrueba rmueba umerba muerba uemrba eumrba meurba emurba uremba ruemba uermba eurmba reumba erumba mreuba rmeuba meruba emruba remuba ermuba ubrema burema urbema rubema bruema rbuema uberma buerma uebrma eubrma beurma eburma urebma ruebma uerbma eurbma reubma erubma breuma rbeuma beruma ebruma rebuma erbuma mbreua bmreua mrbeua rmbeua brmeua rbmeua mberua bmerua mebrua embrua bemrua ebmrua mrebua rmebua merbua emrbua rembua ermbua bremua rbemua bermua ebrmua rebmua erbmua umbaer mubaer ubmaer bumaer mbuaer bmuaer umaber muaber uamber aumber mauber amuber ubamer buamer uabmer aubmer baumer abumer mbauer bmauer mabuer ambuer bamuer abmuer umbear mubear ubmear bumear mbuear bmuear umebar muebar uembar eumbar meubar emubar ubemar buemar uebmar eubmar beumar ebumar mbeuar bmeuar mebuar embuar bemuar ebmuar umaebr muaebr uamebr aumebr mauebr amuebr umeabr mueabr uemabr eumabr meuabr emuabr uaembr auembr ueambr euambr aeumbr eaumbr maeubr ameubr meaubr emaubr aemubr eamubr ubaemr buaemr uabemr aubemr bauemr abuemr ubeamr bueamr uebamr eubamr beuamr ebuamr uaebmr auebmr ueabmr euabmr aeubmr eaubmr baeumr abeumr beaumr ebaumr aebumr eabumr mbaeur bmaeur mabeur ambeur bameur abmeur mbeaur bmeaur mebaur embaur bemaur ebmaur maebur amebur meabur emabur aembur eambur baemur abemur beamur ebamur aebmur eabmur umraeb muraeb urmaeb rumaeb mruaeb rmuaeb umareb muareb uamreb aumreb maureb amureb urameb ruameb uarmeb aurmeb raumeb arumeb mraueb rmaueb marueb amrueb ramueb armueb umreab mureab urmeab rumeab mrueab rmueab umerab muerab uemrab eumrab meurab emurab uremab ruemab uermab eurmab reumab erumab mreuab rmeuab meruab emruab remuab ermuab umaerb muaerb uamerb aumerb mauerb amuerb umearb muearb uemarb eumarb meuarb emuarb uaemrb auemrb ueamrb euamrb aeumrb eaumrb maeurb ameurb meaurb emaurb aemurb eamurb uraemb ruaemb uaremb auremb rauemb aruemb ureamb rueamb ueramb euramb reuamb eruamb uaermb auermb uearmb euarmb aeurmb eaurmb raeumb areumb reaumb eraumb aerumb earumb mraeub rmaeub mareub amreub rameub armeub mreaub rmeaub meraub emraub remaub ermaub maerub amerub mearub emarub aemrub eamrub raemub aremub reamub eramub aermub earmub ubraem buraem urbaem rubaem bruaem rbuaem ubarem buarem uabrem aubrem baurem aburem urabem ruabem uarbem aurbem raubem arubem brauem rbauem baruem abruem rabuem arbuem ubream buream urbeam rubeam brueam rbueam uberam bueram uebram eubram beuram eburam urebam ruebam uerbam eurbam reubam erubam breuam rbeuam beruam ebruam rebuam erbuam ubaerm buaerm uaberm auberm bauerm abuerm ubearm buearm uebarm eubarm beuarm ebuarm uaebrm auebrm ueabrm euabrm aeubrm eaubrm baeurm abeurm beaurm ebaurm aeburm eaburm uraebm ruaebm uarebm aurebm rauebm aruebm ureabm rueabm uerabm eurabm reuabm eruabm uaerbm auerbm uearbm euarbm aeurbm eaurbm raeubm areubm reaubm eraubm aerubm earubm braeum rbaeum bareum abreum rabeum arbeum breaum rbeaum beraum ebraum rebaum erbaum baerum aberum bearum ebarum aebrum eabrum raebum arebum reabum erabum aerbum earbum mbraeu bmraeu mrbaeu rmbaeu brmaeu rbmaeu mbareu bmareu mabreu ambreu bamreu abmreu mrabeu rmabeu marbeu amrbeu rambeu armbeu brameu rbameu barmeu abrmeu rabmeu arbmeu mbreau bmreau mrbeau rmbeau brmeau rbmeau mberau bmerau mebrau embrau bemrau ebmrau mrebau rmebau merbau emrbau rembau ermbau bremau rbemau bermau ebrmau rebmau erbmau mbaeru bmaeru maberu amberu bameru abmeru mbearu bmearu mebaru embaru bemaru ebmaru maebru amebru meabru emabru aembru eambru baemru abemru beamru ebamru aebmru eabmru mraebu rmaebu marebu amrebu ramebu armebu mreabu rmeabu merabu emrabu remabu ermabu maerbu amerbu mearbu emarbu aemrbu eamrbu raembu arembu reambu erambu aermbu earmbu braemu rbaemu baremu abremu rabemu arbemu breamu rbeamu beramu ebramu rebamu erbamu baermu abermu bearmu ebarmu aebrmu eabrmu raebmu arebmu reabmu erabmu aerbmu earbmu
Note: these 'words' (valid or invalid) are all the permutations of the word umbrae. These words are obtained by scrambling the letters in umbrae.