nemda enmda nmeda mneda emnda menda nedma endma ndema dnema ednma denma nmdea mndea ndmea dnmea mdnea dmnea emdna medna edmna demna mdena dmena nemad enmad nmead mnead emnad menad neamd enamd naemd anemd eanmd aenmd nmaed mnaed named anmed maned amned emand meand eamnd aemnd maend amend nedam endam ndeam dneam ednam denam neadm enadm naedm anedm eandm aendm ndaem dnaem nadem andem danem adnem edanm deanm eadnm aednm daenm adenm nmdae mndae ndmae dnmae mdnae dmnae nmade mnade namde anmde mande amnde ndame dname nadme andme danme adnme mdane dmane madne amdne damne admne emdan medan edman deman mdean dmean emadn meadn eamdn aemdn maedn amedn edamn deamn eadmn aedmn daemn ademn mdaen dmaen maden amden damen admen
Note: these 'words' (valid or invalid) are all the permutations of the word nemda. These words are obtained by scrambling the letters in nemda.