ferly efrly frely rfely erfly refly felry eflry flery lfery elfry lefry frley rfley flrey lfrey rlfey lrfey erlfy relfy elrfy lerfy rlefy lrefy feryl efryl freyl rfeyl erfyl refyl feyrl efyrl fyerl yferl eyfrl yefrl fryel rfyel fyrel yfrel ryfel yrfel eryfl reyfl eyrfl yerfl ryefl yrefl felyr eflyr fleyr lfeyr elfyr lefyr feylr efylr fyelr yfelr eyflr yeflr flyer lfyer fyler yfler lyfer ylfer elyfr leyfr eylfr yelfr lyefr ylefr frlye rflye flrye lfrye rlfye lrfye fryle rfyle fyrle yfrle ryfle yrfle flyre lfyre fylre yflre lyfre ylfre rlyfe lryfe rylfe yrlfe lyrfe ylrfe erlyf relyf elryf leryf rleyf lreyf erylf reylf eyrlf yerlf ryelf yrelf elyrf leyrf eylrf yelrf lyerf ylerf rlyef lryef rylef yrlef lyref ylref
Note: these 'words' (valid or invalid) are all the permutations of the word ferly. These words are obtained by scrambling the letters in ferly.