swath wsath sawth aswth wasth awsth swtah wstah stwah tswah wtsah twsah satwh astwh stawh tsawh atswh taswh watsh awtsh wtash twash atwsh tawsh swaht wsaht sawht aswht washt awsht swhat wshat shwat hswat whsat hwsat sahwt ashwt shawt hsawt ahswt haswt wahst awhst whast hwast ahwst hawst swtha wstha stwha tswha wtsha twsha swhta wshta shwta hswta whsta hwsta sthwa tshwa shtwa hstwa thswa htswa wthsa twhsa whtsa hwtsa thwsa htwsa sathw asthw stahw tsahw atshw tashw sahtw ashtw shatw hsatw ahstw hastw sthaw tshaw shtaw hstaw thsaw htsaw athsw tahsw ahtsw hatsw thasw htasw waths awths wtahs twahs atwhs tawhs wahts awhts whats hwats ahwts hawts wthas twhas whtas hwtas thwas htwas athws tahws ahtws hatws thaws htaws
Note: these 'words' (valid or invalid) are all the permutations of the word swath. These words are obtained by scrambling the letters in swath.