rather arther rtaher traher atrher tarher rahter arhter rhater hrater ahrter harter rthaer trhaer rhtaer hrtaer thraer htraer athrer tahrer ahtrer hatrer tharer htarer ratehr artehr rtaehr traehr atrehr tarehr raethr arethr reathr erathr aerthr earthr rteahr treahr retahr ertahr terahr etrahr aterhr taerhr aetrhr eatrhr tearhr etarhr rahetr arhetr rhaetr hraetr ahretr haretr raehtr arehtr reahtr erahtr aerhtr earhtr rheatr hreatr rehatr erhatr heratr ehratr ahertr haertr aehrtr eahrtr heartr ehartr rthear trhear rhtear hrtear threar htrear rtehar trehar rethar erthar terhar etrhar rhetar hretar rehtar erhtar hertar ehrtar therar hterar tehrar ethrar hetrar ehtrar atherr taherr ahterr haterr thaerr htaerr atehrr taehrr aethrr eathrr teahrr etahrr ahetrr haetrr aehtrr eahtrr heatrr ehatrr thearr htearr teharr etharr hetarr ehtarr rathre arthre rtahre trahre atrhre tarhre rahtre arhtre rhatre hratre ahrtre hartre rthare trhare rhtare hrtare thrare htrare athrre tahrre ahtrre hatrre tharre htarre ratrhe artrhe rtarhe trarhe atrrhe tarrhe rarthe arrthe rrathe rrathe arrthe rarthe rtrahe trrahe rrtahe rrtahe trrahe rtrahe atrrhe tarrhe artrhe ratrhe trarhe rtarhe rahrte arhrte rharte hrarte ahrrte harrte rarhte arrhte rrahte rrahte arrhte rarhte rhrate hrrate rrhate rrhate hrrate rhrate ahrrte harrte arhrte rahrte hrarte rharte rthrae trhrae rhtrae hrtrae thrrae htrrae rtrhae trrhae rrthae rrthae trrhae rtrhae rhrtae hrrtae rrhtae rrhtae hrrtae rhrtae thrrae htrrae trhrae rthrae hrtrae rhtrae athrre tahrre ahtrre hatrre tharre htarre atrhre tarhre arthre rathre trahre rtahre ahrtre hartre arhtre rahtre hratre rhatre thrare htrare trhare rthare hrtare rhtare raterh arterh rtaerh traerh atrerh tarerh raetrh aretrh reatrh eratrh aertrh eartrh rtearh trearh retarh ertarh terarh etrarh aterrh taerrh aetrrh eatrrh tearrh etarrh ratreh artreh rtareh trareh atrreh tarreh rarteh arrteh rrateh rrateh arrteh rarteh rtraeh trraeh rrtaeh rrtaeh trraeh rtraeh atrreh tarreh artreh ratreh trareh rtareh raerth arerth rearth erarth aerrth earrth rareth arreth rraeth rraeth arreth rareth rerath errath rreath rreath errath rerath aerrth earrth arerth raerth erarth rearth rterah trerah retrah ertrah terrah etrrah rtreah trreah rrteah rrteah trreah rtreah rertah errtah rretah rretah errtah rertah terrah etrrah trerah rterah ertrah retrah aterrh taerrh aetrrh eatrrh tearrh etarrh atrerh tarerh arterh raterh traerh rtaerh aertrh eartrh aretrh raetrh eratrh reatrh terarh etrarh trearh rtearh ertarh retarh rahert arhert rhaert hraert ahrert harert raehrt arehrt reahrt erahrt aerhrt earhrt rheart hreart rehart erhart herart ehrart aherrt haerrt aehrrt eahrrt hearrt eharrt rahret arhret rharet hraret ahrret harret rarhet arrhet rrahet rrahet arrhet rarhet rhraet hrraet rrhaet rrhaet hrraet rhraet ahrret harret arhret rahret hraret rharet raerht arerht rearht erarht aerrht earrht rareht arreht rraeht rraeht arreht rareht reraht erraht rreaht rreaht erraht reraht aerrht earrht arerht raerht erarht rearht rherat hrerat rehrat erhrat herrat ehrrat rhreat hrreat rrheat rrheat hrreat rhreat rerhat errhat rrehat rrehat errhat rerhat herrat ehrrat hrerat rherat erhrat rehrat aherrt haerrt aehrrt eahrrt hearrt eharrt ahrert harert arhert rahert hraert rhaert aerhrt earhrt arehrt raehrt erahrt reahrt herart ehrart hreart rheart erhart rehart rthera trhera rhtera hrtera threra htrera rtehra trehra rethra erthra terhra etrhra rhetra hretra rehtra erhtra hertra ehrtra therra hterra tehrra ethrra hetrra ehtrra rthrea trhrea rhtrea hrtrea thrrea htrrea rtrhea trrhea rrthea rrthea trrhea rtrhea rhrtea hrrtea rrhtea rrhtea hrrtea rhrtea thrrea htrrea trhrea rthrea hrtrea rhtrea rterha trerha retrha ertrha terrha etrrha rtreha trreha rrteha rrteha trreha rtreha rertha errtha rretha rretha errtha rertha terrha etrrha trerha rterha ertrha retrha rherta hrerta rehrta erhrta herrta ehrrta rhreta hrreta rrheta rrheta hrreta rhreta rerhta errhta rrehta rrehta errhta rerhta herrta ehrrta hrerta rherta erhrta rehrta therra hterra tehrra ethrra hetrra ehtrra threra htrera trhera rthera hrtera rhtera terhra etrhra trehra rtehra erthra rethra hertra ehrtra hretra rhetra erhtra rehtra atherr taherr ahterr haterr thaerr htaerr atehrr taehrr aethrr eathrr teahrr etahrr ahetrr haetrr aehtrr eahtrr heatrr ehatrr thearr htearr teharr etharr hetarr ehtarr athrer tahrer ahtrer hatrer tharer htarer atrher tarher arther rather traher rtaher ahrter harter arhter rahter hrater rhater thraer htraer trhaer rthaer hrtaer rhtaer aterhr taerhr aetrhr eatrhr tearhr etarhr atrehr tarehr artehr ratehr traehr rtaehr aerthr earthr arethr raethr erathr reathr terahr etrahr treahr rteahr ertahr retahr ahertr haertr aehrtr eahrtr heartr ehartr ahretr haretr arhetr rahetr hraetr rhaetr aerhtr earhtr arehtr raehtr erahtr reahtr heratr ehratr hreatr rheatr erhatr rehatr therar hterar tehrar ethrar hetrar ehtrar threar htrear trhear rthear hrtear rhtear terhar etrhar trehar rtehar erthar rethar hertar ehrtar hretar rhetar erhtar rehtar
Note: these 'words' (valid or invalid) are all the permutations of the word rather. These words are obtained by scrambling the letters in rather.