erned rened enred nered rneed nreed erend reend eernd eernd reend erend enerd neerd eenrd eenrd neerd enerd rneed nreed rened erned nered enred ernde rende enrde nerde rnede nrede erdne redne edrne derne rdene drene endre nedre ednre denre ndere dnere rndee nrdee rdnee drnee ndree dnree eredn reedn eerdn eerdn reedn eredn erden reden edren deren rdeen dreen eedrn eedrn edern deern edern deern reden erden rdeen dreen edren deren enedr needr eendr eendr needr enedr ender neder edner dener ndeer dneer eednr eednr edenr deenr edenr deenr neder ender ndeer dneer edner dener rnede nrede rende ernde nerde enrde rndee nrdee rdnee drnee ndree dnree redne erdne rdene drene edrne derne nedre endre ndere dnere ednre denre
Note: these 'words' (valid or invalid) are all the permutations of the word erned. These words are obtained by scrambling the letters in erned.