ceder ecder cdeer dceer edcer decer ceedr ecedr ceedr ecedr eecdr eecdr cdeer dceer ceder ecder decer edcer edecr deecr eedcr eedcr deecr edecr cedre ecdre cdere dcere edcre decre cerde ecrde crede rcede ercde recde cdree dcree crdee rcdee drcee rdcee edrce derce erdce redce drece rdece ceerd ecerd ceerd ecerd eecrd eecrd cered ecred creed rceed erced reced cered ecred creed rceed erced reced eercd eercd erecd reecd erecd reecd cdere dcere cedre ecdre decre edcre cdree dcree crdee rcdee drcee rdcee cerde ecrde crede rcede ercde recde derce edrce drece rdece erdce redce ederc deerc eedrc eedrc deerc ederc edrec derec erdec redec dreec rdeec eerdc eerdc eredc reedc eredc reedc derec edrec dreec rdeec erdec redec
Note: these 'words' (valid or invalid) are all the permutations of the word ceder. These words are obtained by scrambling the letters in ceder.