friths rfiths firths ifrths rifths irfths frtihs rftihs ftrihs tfrihs rtfihs trfihs fitrhs iftrhs ftirhs tfirhs itfrhs tifrhs ritfhs irtfhs rtifhs trifhs itrfhs tirfhs frihts rfihts firhts ifrhts rifhts irfhts frhits rfhits fhrits hfrits rhfits hrfits fihrts ifhrts fhirts hfirts ihfrts hifrts rihfts irhfts rhifts hrifts ihrfts hirfts frthis rfthis ftrhis tfrhis rtfhis trfhis frhtis rfhtis fhrtis hfrtis rhftis hrftis fthris tfhris fhtris hftris thfris htfris rthfis trhfis rhtfis hrtfis thrfis htrfis fithrs ifthrs ftihrs tfihrs itfhrs tifhrs fihtrs ifhtrs fhitrs hfitrs ihftrs hiftrs fthirs tfhirs fhtirs hftirs thfirs htfirs ithfrs tihfrs ihtfrs hitfrs thifrs htifrs rithfs irthfs rtihfs trihfs itrhfs tirhfs rihtfs irhtfs rhitfs hritfs ihrtfs hirtfs rthifs trhifs rhtifs hrtifs thrifs htrifs ithrfs tihrfs ihtrfs hitrfs thirfs htirfs fritsh rfitsh firtsh ifrtsh riftsh irftsh frtish rftish ftrish tfrish rtfish trfish fitrsh iftrsh ftirsh tfirsh itfrsh tifrsh ritfsh irtfsh rtifsh trifsh itrfsh tirfsh fristh rfisth firsth ifrsth rifsth irfsth frsith rfsith fsrith sfrith rsfith srfith fisrth ifsrth fsirth sfirth isfrth sifrth risfth irsfth rsifth srifth isrfth sirfth frtsih rftsih ftrsih tfrsih rtfsih trfsih frstih rfstih fsrtih sfrtih rsftih srftih ftsrih tfsrih fstrih sftrih tsfrih stfrih rtsfih trsfih rstfih srtfih tsrfih strfih fitsrh iftsrh ftisrh tfisrh itfsrh tifsrh fistrh ifstrh fsitrh sfitrh isftrh siftrh ftsirh tfsirh fstirh sftirh tsfirh stfirh itsfrh tisfrh istfrh sitfrh tsifrh stifrh ritsfh irtsfh rtisfh trisfh itrsfh tirsfh ristfh irstfh rsitfh sritfh isrtfh sirtfh rtsifh trsifh rstifh srtifh tsrifh strifh itsrfh tisrfh istrfh sitrfh tsirfh stirfh frihst rfihst firhst ifrhst rifhst irfhst frhist rfhist fhrist hfrist rhfist hrfist fihrst ifhrst fhirst hfirst ihfrst hifrst rihfst irhfst rhifst hrifst ihrfst hirfst frisht rfisht firsht ifrsht rifsht irfsht frsiht rfsiht fsriht sfriht rsfiht srfiht fisrht ifsrht fsirht sfirht isfrht sifrht risfht irsfht rsifht srifht isrfht sirfht frhsit rfhsit fhrsit hfrsit rhfsit hrfsit frshit rfshit fsrhit sfrhit rsfhit srfhit fhsrit hfsrit fshrit sfhrit hsfrit shfrit rhsfit hrsfit rshfit srhfit hsrfit shrfit fihsrt ifhsrt fhisrt hfisrt ihfsrt hifsrt fishrt ifshrt fsihrt sfihrt isfhrt sifhrt fhsirt hfsirt fshirt sfhirt hsfirt shfirt ihsfrt hisfrt ishfrt sihfrt hsifrt shifrt rihsft irhsft rhisft hrisft ihrsft hirsft rishft irshft rsihft srihft isrhft sirhft rhsift hrsift rshift srhift hsrift shrift ihsrft hisrft ishrft sihrft hsirft shirft frthsi rfthsi ftrhsi tfrhsi rtfhsi trfhsi frhtsi rfhtsi fhrtsi hfrtsi rhftsi hrftsi fthrsi tfhrsi fhtrsi hftrsi thfrsi htfrsi rthfsi trhfsi rhtfsi hrtfsi thrfsi htrfsi frtshi rftshi ftrshi tfrshi rtfshi trfshi frsthi rfsthi fsrthi sfrthi rsfthi srfthi ftsrhi tfsrhi fstrhi sftrhi tsfrhi stfrhi rtsfhi trsfhi rstfhi srtfhi tsrfhi strfhi frhsti rfhsti fhrsti hfrsti rhfsti hrfsti frshti rfshti fsrhti sfrhti rsfhti srfhti fhsrti hfsrti fshrti sfhrti hsfrti shfrti rhsfti hrsfti rshfti srhfti hsrfti shrfti fthsri tfhsri fhtsri hftsri thfsri htfsri ftshri tfshri fsthri sfthri tsfhri stfhri fhstri hfstri fshtri sfhtri hsftri shftri thsfri htsfri tshfri sthfri hstfri shtfri rthsfi trhsfi rhtsfi hrtsfi thrsfi htrsfi rtshfi trshfi rsthfi srthfi tsrhfi strhfi rhstfi hrstfi rshtfi srhtfi hsrtfi shrtfi thsrfi htsrfi tshrfi sthrfi hstrfi shtrfi fithsr ifthsr ftihsr tfihsr itfhsr tifhsr fihtsr ifhtsr fhitsr hfitsr ihftsr hiftsr fthisr tfhisr fhtisr hftisr thfisr htfisr ithfsr tihfsr ihtfsr hitfsr thifsr htifsr fitshr iftshr ftishr tfishr itfshr tifshr fisthr ifsthr fsithr sfithr isfthr sifthr ftsihr tfsihr fstihr sftihr tsfihr stfihr itsfhr tisfhr istfhr sitfhr tsifhr stifhr fihstr ifhstr fhistr hfistr ihfstr hifstr fishtr ifshtr fsihtr sfihtr isfhtr sifhtr fhsitr hfsitr fshitr sfhitr hsfitr shfitr ihsftr hisftr ishftr sihftr hsiftr shiftr fthsir tfhsir fhtsir hftsir thfsir htfsir ftshir tfshir fsthir sfthir tsfhir stfhir fhstir hfstir fshtir sfhtir hsftir shftir thsfir htsfir tshfir sthfir hstfir shtfir ithsfr tihsfr ihtsfr hitsfr thisfr htisfr itshfr tishfr isthfr sithfr tsihfr stihfr ihstfr histfr ishtfr sihtfr hsitfr shitfr thsifr htsifr tshifr sthifr hstifr shtifr rithsf irthsf rtihsf trihsf itrhsf tirhsf rihtsf irhtsf rhitsf hritsf ihrtsf hirtsf rthisf trhisf rhtisf hrtisf thrisf htrisf ithrsf tihrsf ihtrsf hitrsf thirsf htirsf ritshf irtshf rtishf trishf itrshf tirshf risthf irsthf rsithf srithf isrthf sirthf rtsihf trsihf rstihf srtihf tsrihf strihf itsrhf tisrhf istrhf sitrhf tsirhf stirhf rihstf irhstf rhistf hristf ihrstf hirstf rishtf irshtf rsihtf srihtf isrhtf sirhtf rhsitf hrsitf rshitf srhitf hsritf shritf ihsrtf hisrtf ishrtf sihrtf hsirtf shirtf rthsif trhsif rhtsif hrtsif thrsif htrsif rtshif trshif rsthif srthif tsrhif strhif rhstif hrstif rshtif srhtif hsrtif shrtif thsrif htsrif tshrif sthrif hstrif shtrif ithsrf tihsrf ihtsrf hitsrf thisrf htisrf itshrf tishrf isthrf sithrf tsihrf stihrf ihstrf histrf ishtrf sihtrf hsitrf shitrf thsirf htsirf tshirf sthirf hstirf shtirf
Note: these 'words' (valid or invalid) are all the permutations of the word friths. These words are obtained by scrambling the letters in friths.