pedir epdir pdeir dpeir edpir depir peidr epidr piedr ipedr eipdr iepdr pdier dpier pider ipder diper idper edipr deipr eidpr iedpr diepr idepr pedri epdri pderi dperi edpri depri perdi eprdi predi rpedi erpdi repdi pdrei dprei prdei rpdei drpei rdpei edrpi derpi erdpi redpi drepi rdepi peird epird pierd iperd eiprd ieprd perid eprid preid rpeid erpid repid pired ipred pried rpied irped riped eirpd ierpd eripd reipd irepd riepd pdire dpire pidre ipdre dipre idpre pdrie dprie prdie rpdie drpie rdpie pirde iprde pride rpide irpde ripde dirpe idrpe dripe rdipe irdpe ridpe edirp deirp eidrp iedrp dierp iderp edrip derip erdip redip dreip rdeip eirdp ierdp eridp reidp iredp riedp direp idrep driep rdiep irdep ridep
Note: these 'words' (valid or invalid) are all the permutations of the word pedir. These words are obtained by scrambling the letters in pedir.