airths iarths ariths raiths iraths riaths aitrhs iatrhs atirhs tairhs itarhs tiarhs artihs ratihs atrihs tarihs rtaihs traihs irtahs ritahs itrahs tirahs rtiahs triahs airhts iarhts arihts raihts irahts riahts aihrts iahrts ahirts hairts iharts hiarts arhits rahits ahrits harits rhaits hraits irhats rihats ihrats hirats rhiats hriats aithrs iathrs atihrs taihrs itahrs tiahrs aihtrs iahtrs ahitrs haitrs ihatrs hiatrs athirs tahirs ahtirs hatirs thairs htairs ithars tihars ihtars hitars thiars htiars arthis rathis atrhis tarhis rtahis trahis arhtis rahtis ahrtis hartis rhatis hratis athris tahris ahtris hatris tharis htaris rthais trhais rhtais hrtais thrais htrais irthas rithas itrhas tirhas rtihas trihas irhtas rihtas ihrtas hirtas rhitas hritas ithras tihras ihtras hitras thiras htiras rthias trhias rhtias hrtias thrias htrias airtsh iartsh aritsh raitsh iratsh riatsh aitrsh iatrsh atirsh tairsh itarsh tiarsh artish ratish atrish tarish rtaish traish irtash ritash itrash tirash rtiash triash airsth iarsth aristh raisth irasth riasth aisrth iasrth asirth sairth isarth siarth arsith rasith asrith sarith rsaith sraith irsath risath israth sirath rsiath sriath aitsrh iatsrh atisrh taisrh itasrh tiasrh aistrh iastrh asitrh saitrh isatrh siatrh atsirh tasirh astirh satirh tsairh stairh itsarh tisarh istarh sitarh tsiarh stiarh artsih ratsih atrsih tarsih rtasih trasih arstih rastih asrtih sartih rsatih sratih atsrih tasrih astrih satrih tsarih starih rtsaih trsaih rstaih srtaih tsraih straih irtsah ritsah itrsah tirsah rtisah trisah irstah ristah isrtah sirtah rsitah sritah itsrah tisrah istrah sitrah tsirah stirah rtsiah trsiah rstiah srtiah tsriah striah airhst iarhst arihst raihst irahst riahst aihrst iahrst ahirst hairst iharst hiarst arhist rahist ahrist harist rhaist hraist irhast rihast ihrast hirast rhiast hriast airsht iarsht arisht raisht irasht riasht aisrht iasrht asirht sairht isarht siarht arsiht rasiht asriht sariht rsaiht sraiht irsaht risaht israht siraht rsiaht sriaht aihsrt iahsrt ahisrt haisrt ihasrt hiasrt aishrt iashrt asihrt saihrt isahrt siahrt ahsirt hasirt ashirt sahirt hsairt shairt ihsart hisart ishart sihart hsiart shiart arhsit rahsit ahrsit harsit rhasit hrasit arshit rashit asrhit sarhit rsahit srahit ahsrit hasrit ashrit sahrit hsarit sharit rhsait hrsait rshait srhait hsrait shrait irhsat rihsat ihrsat hirsat rhisat hrisat irshat rishat isrhat sirhat rsihat srihat ihsrat hisrat ishrat sihrat hsirat shirat rhsiat hrsiat rshiat srhiat hsriat shriat aithsr iathsr atihsr taihsr itahsr tiahsr aihtsr iahtsr ahitsr haitsr ihatsr hiatsr athisr tahisr ahtisr hatisr thaisr htaisr ithasr tihasr ihtasr hitasr thiasr htiasr aitshr iatshr atishr taishr itashr tiashr aisthr iasthr asithr saithr isathr siathr atsihr tasihr astihr satihr tsaihr staihr itsahr tisahr istahr sitahr tsiahr stiahr aihstr iahstr ahistr haistr ihastr hiastr aishtr iashtr asihtr saihtr isahtr siahtr ahsitr hasitr ashitr sahitr hsaitr shaitr ihsatr hisatr ishatr sihatr hsiatr shiatr athsir tahsir ahtsir hatsir thasir htasir atshir tashir asthir sathir tsahir stahir ahstir hastir ashtir sahtir hsatir shatir thsair htsair tshair sthair hstair shtair ithsar tihsar ihtsar hitsar thisar htisar itshar tishar isthar sithar tsihar stihar ihstar histar ishtar sihtar hsitar shitar thsiar htsiar tshiar sthiar hstiar shtiar arthsi rathsi atrhsi tarhsi rtahsi trahsi arhtsi rahtsi ahrtsi hartsi rhatsi hratsi athrsi tahrsi ahtrsi hatrsi tharsi htarsi rthasi trhasi rhtasi hrtasi thrasi htrasi artshi ratshi atrshi tarshi rtashi trashi arsthi rasthi asrthi sarthi rsathi srathi atsrhi tasrhi astrhi satrhi tsarhi starhi rtsahi trsahi rstahi srtahi tsrahi strahi arhsti rahsti ahrsti harsti rhasti hrasti arshti rashti asrhti sarhti rsahti srahti ahsrti hasrti ashrti sahrti hsarti sharti rhsati hrsati rshati srhati hsrati shrati athsri tahsri ahtsri hatsri thasri htasri atshri tashri asthri sathri tsahri stahri ahstri hastri ashtri sahtri hsatri shatri thsari htsari tshari sthari hstari shtari rthsai trhsai rhtsai hrtsai thrsai htrsai rtshai trshai rsthai srthai tsrhai strhai rhstai hrstai rshtai srhtai hsrtai shrtai thsrai htsrai tshrai sthrai hstrai shtrai irthsa rithsa itrhsa tirhsa rtihsa trihsa irhtsa rihtsa ihrtsa hirtsa rhitsa hritsa ithrsa tihrsa ihtrsa hitrsa thirsa htirsa rthisa trhisa rhtisa hrtisa thrisa htrisa irtsha ritsha itrsha tirsha rtisha trisha irstha ristha isrtha sirtha rsitha sritha itsrha tisrha istrha sitrha tsirha stirha rtsiha trsiha rstiha srtiha tsriha striha irhsta rihsta ihrsta hirsta rhista hrista irshta rishta isrhta sirhta rsihta srihta ihsrta hisrta ishrta sihrta hsirta shirta rhsita hrsita rshita srhita hsrita shrita ithsra tihsra ihtsra hitsra thisra htisra itshra tishra isthra sithra tsihra stihra ihstra histra ishtra sihtra hsitra shitra thsira htsira tshira sthira hstira shtira rthsia trhsia rhtsia hrtsia thrsia htrsia rtshia trshia rsthia srthia tsrhia strhia rhstia hrstia rshtia srhtia hsrtia shrtia thsria htsria tshria sthria hstria shtria
Note: these 'words' (valid or invalid) are all the permutations of the word airths. These words are obtained by scrambling the letters in airths.