decay edcay dceay cdeay ecday ceday deacy edacy daecy adecy eadcy aedcy dcaey cdaey dacey adcey cadey acdey ecady ceady eacdy aecdy caedy acedy decya edcya dceya cdeya ecdya cedya deyca edyca dyeca ydeca eydca yedca dcyea cdyea dycea ydcea cydea ycdea ecyda ceyda eycda yecda cyeda yceda deayc edayc daeyc adeyc eadyc aedyc deyac edyac dyeac ydeac eydac yedac dayec adyec dyaec ydaec aydec yadec eaydc aeydc eyadc yeadc ayedc yaedc dcaye cdaye dacye adcye cadye acdye dcyae cdyae dycae ydcae cydae ycdae dayce adyce dyace ydace aydce yadce cayde acyde cyade ycade aycde yacde ecayd ceayd eacyd aecyd caeyd aceyd ecyad ceyad eycad yecad cyead ycead eaycd aeycd eyacd yeacd ayecd yaecd cayed acyed cyaed ycaed ayced yaced
Note: these 'words' (valid or invalid) are all the permutations of the word decay. These words are obtained by scrambling the letters in decay.