murva umrva mruva rmuva urmva rumva muvra umvra mvura vmura uvmra vumra mrvua rmvua mvrua vmrua rvmua vrmua urvma ruvma uvrma vurma rvuma vruma murav umrav mruav rmuav urmav rumav muarv umarv maurv amurv uamrv aumrv mrauv rmauv maruv amruv ramuv armuv uramv ruamv uarmv aurmv raumv arumv muvar umvar mvuar vmuar uvmar vumar muavr umavr mauvr amuvr uamvr aumvr mvaur vmaur mavur amvur vamur avmur uvamr vuamr uavmr auvmr vaumr avumr mrvau rmvau mvrau vmrau rvmau vrmau mravu rmavu marvu amrvu ramvu armvu mvaru vmaru mavru amvru vamru avmru rvamu vramu ravmu arvmu varmu avrmu urvam ruvam uvram vuram rvuam vruam uravm ruavm uarvm aurvm rauvm aruvm uvarm vuarm uavrm auvrm vaurm avurm rvaum vraum ravum arvum varum avrum
Note: these 'words' (valid or invalid) are all the permutations of the word murva. These words are obtained by scrambling the letters in murva.