durgy udrgy drugy rdugy urdgy rudgy dugry udgry dgury gdury ugdry gudry drguy rdguy dgruy gdruy rgduy grduy urgdy rugdy ugrdy gurdy rgudy grudy duryg udryg druyg rduyg urdyg rudyg duyrg udyrg dyurg ydurg uydrg yudrg dryug rdyug dyrug ydrug rydug yrdug urydg ruydg uyrdg yurdg ryudg yrudg dugyr udgyr dguyr gduyr ugdyr gudyr duygr udygr dyugr ydugr uydgr yudgr dgyur gdyur dygur ydgur gydur ygdur ugydr guydr uygdr yugdr gyudr ygudr drgyu rdgyu dgryu gdryu rgdyu grdyu drygu rdygu dyrgu ydrgu rydgu yrdgu dgyru gdyru dygru ydgru gydru ygdru rgydu grydu rygdu yrgdu gyrdu ygrdu urgyd rugyd ugryd guryd rguyd gruyd urygd ruygd uyrgd yurgd ryugd yrugd ugyrd guyrd uygrd yugrd gyurd ygurd rgyud gryud rygud yrgud gyrud ygrud
Note: these 'words' (valid or invalid) are all the permutations of the word durgy. These words are obtained by scrambling the letters in durgy.