costly ocstly csotly scotly osctly soctly cotsly octsly ctosly tcosly otcsly tocsly cstoly sctoly ctsoly tcsoly stcoly tscoly ostcly sotcly otscly toscly stocly tsocly coslty ocslty csolty scolty osclty soclty colsty oclsty closty lcosty olcsty locsty csloty scloty clsoty lcsoty slcoty lscoty oslcty solcty olscty loscty slocty lsocty cotlsy octlsy ctolsy tcolsy otclsy toclsy coltsy ocltsy clotsy lcotsy olctsy loctsy ctlosy tclosy cltosy lctosy tlcosy ltcosy otlcsy tolcsy oltcsy lotcsy tlocsy ltocsy cstloy sctloy ctsloy tcsloy stcloy tscloy csltoy scltoy clstoy lcstoy slctoy lsctoy ctlsoy tclsoy cltsoy lctsoy tlcsoy ltcsoy stlcoy tslcoy sltcoy lstcoy tlscoy ltscoy ostlcy sotlcy otslcy toslcy stolcy tsolcy osltcy soltcy olstcy lostcy slotcy lsotcy otlscy tolscy oltscy lotscy tloscy ltoscy stlocy tslocy sltocy lstocy tlsocy ltsocy costyl ocstyl csotyl scotyl osctyl soctyl cotsyl octsyl ctosyl tcosyl otcsyl tocsyl cstoyl sctoyl ctsoyl tcsoyl stcoyl tscoyl ostcyl sotcyl otscyl toscyl stocyl tsocyl cosytl ocsytl csoytl scoytl oscytl socytl coystl ocystl cyostl ycostl oycstl yocstl csyotl scyotl cysotl ycsotl sycotl yscotl osyctl soyctl oysctl yosctl syoctl ysoctl cotysl octysl ctoysl tcoysl otcysl tocysl coytsl ocytsl cyotsl ycotsl oyctsl yoctsl ctyosl tcyosl cytosl yctosl tycosl ytcosl otycsl toycsl oytcsl yotcsl tyocsl ytocsl cstyol sctyol ctsyol tcsyol stcyol tscyol csytol scytol cystol ycstol syctol ysctol ctysol tcysol cytsol yctsol tycsol ytcsol stycol tsycol sytcol ystcol tyscol ytscol ostycl sotycl otsycl tosycl stoycl tsoycl osytcl soytcl oystcl yostcl syotcl ysotcl otyscl toyscl oytscl yotscl tyoscl ytoscl styocl tsyocl sytocl ystocl tysocl ytsocl coslyt ocslyt csolyt scolyt osclyt soclyt colsyt oclsyt closyt lcosyt olcsyt locsyt csloyt scloyt clsoyt lcsoyt slcoyt lscoyt oslcyt solcyt olscyt loscyt slocyt lsocyt cosylt ocsylt csoylt scoylt oscylt socylt coyslt ocyslt cyoslt ycoslt oycslt yocslt csyolt scyolt cysolt ycsolt sycolt yscolt osyclt soyclt oysclt yosclt syoclt ysoclt colyst oclyst cloyst lcoyst olcyst locyst coylst ocylst cyolst ycolst oyclst yoclst clyost lcyost cylost yclost lycost ylcost olycst loycst oylcst yolcst lyocst ylocst cslyot sclyot clsyot lcsyot slcyot lscyot csylot scylot cyslot ycslot syclot ysclot clysot lcysot cylsot yclsot lycsot ylcsot slycot lsycot sylcot yslcot lyscot ylscot oslyct solyct olsyct losyct sloyct lsoyct osylct soylct oyslct yoslct syolct ysolct olysct loysct oylsct yolsct lyosct ylosct slyoct lsyoct syloct ysloct lysoct ylsoct cotlys octlys ctolys tcolys otclys toclys coltys ocltys clotys lcotys olctys loctys ctloys tcloys cltoys lctoys tlcoys ltcoys otlcys tolcys oltcys lotcys tlocys ltocys cotyls octyls ctoyls tcoyls otcyls tocyls coytls ocytls cyotls ycotls oyctls yoctls ctyols tcyols cytols yctols tycols ytcols otycls toycls oytcls yotcls tyocls ytocls colyts oclyts cloyts lcoyts olcyts locyts coylts ocylts cyolts ycolts oyclts yoclts clyots lcyots cylots yclots lycots ylcots olycts loycts oylcts yolcts lyocts ylocts ctlyos tclyos cltyos lctyos tlcyos ltcyos ctylos tcylos cytlos yctlos tyclos ytclos clytos lcytos cyltos ycltos lyctos ylctos tlycos ltycos tylcos ytlcos lytcos yltcos otlycs tolycs oltycs lotycs tloycs ltoycs otylcs toylcs oytlcs yotlcs tyolcs ytolcs olytcs loytcs oyltcs yoltcs lyotcs ylotcs tlyocs ltyocs tylocs ytlocs lytocs yltocs cstlyo sctlyo ctslyo tcslyo stclyo tsclyo csltyo scltyo clstyo lcstyo slctyo lsctyo ctlsyo tclsyo cltsyo lctsyo tlcsyo ltcsyo stlcyo tslcyo sltcyo lstcyo tlscyo ltscyo cstylo sctylo ctsylo tcsylo stcylo tscylo csytlo scytlo cystlo ycstlo syctlo ysctlo ctyslo tcyslo cytslo yctslo tycslo ytcslo styclo tsyclo sytclo ystclo tysclo ytsclo cslyto sclyto clsyto lcsyto slcyto lscyto csylto scylto cyslto ycslto syclto ysclto clysto lcysto cylsto yclsto lycsto ylcsto slycto lsycto sylcto yslcto lyscto ylscto ctlyso tclyso cltyso lctyso tlcyso ltcyso ctylso tcylso cytlso yctlso tyclso ytclso clytso lcytso cyltso ycltso lyctso ylctso tlycso ltycso tylcso ytlcso lytcso yltcso stlyco tslyco sltyco lstyco tlsyco ltsyco stylco tsylco sytlco ystlco tyslco ytslco slytco lsytco syltco ysltco lystco ylstco tlysco ltysco tylsco ytlsco lytsco yltsco ostlyc sotlyc otslyc toslyc stolyc tsolyc osltyc soltyc olstyc lostyc slotyc lsotyc otlsyc tolsyc oltsyc lotsyc tlosyc ltosyc stloyc tsloyc sltoyc lstoyc tlsoyc ltsoyc ostylc sotylc otsylc tosylc stoylc tsoylc osytlc soytlc oystlc yostlc syotlc ysotlc otyslc toyslc oytslc yotslc tyoslc ytoslc styolc tsyolc sytolc ystolc tysolc ytsolc oslytc solytc olsytc losytc sloytc lsoytc osyltc soyltc oysltc yosltc syoltc ysoltc olystc loystc oylstc yolstc lyostc ylostc slyotc lsyotc sylotc yslotc lysotc ylsotc otlysc tolysc oltysc lotysc tloysc ltoysc otylsc toylsc oytlsc yotlsc tyolsc ytolsc olytsc loytsc oyltsc yoltsc lyotsc ylotsc tlyosc ltyosc tylosc ytlosc lytosc yltosc stlyoc tslyoc sltyoc lstyoc tlsyoc ltsyoc styloc tsyloc sytloc ystloc tysloc ytsloc slytoc lsytoc syltoc ysltoc lystoc ylstoc tlysoc ltysoc tylsoc ytlsoc lytsoc yltsoc
Note: these 'words' (valid or invalid) are all the permutations of the word costly. These words are obtained by scrambling the letters in costly.