ithsa tihsa ihtsa hitsa thisa htisa itsha tisha istha sitha tsiha stiha ihsta hista ishta sihta hsita shita thsia htsia tshia sthia hstia shtia ithas tihas ihtas hitas thias htias itahs tiahs iaths aiths taihs atihs ihats hiats iahts aihts haits ahits thais htais tahis athis hatis ahtis itsah tisah istah sitah tsiah stiah itash tiash iatsh aitsh taish atish isath siath iasth aisth saith asith tsaih staih tasih atsih satih astih ihsat hisat ishat sihat hsiat shiat ihast hiast iahst aihst haist ahist isaht siaht iasht aisht saiht asiht hsait shait hasit ahsit sahit ashit thsai htsai tshai sthai hstai shtai thasi htasi tahsi athsi hatsi ahtsi tsahi stahi tashi atshi sathi asthi hsati shati hasti ahsti sahti ashti
Note: these 'words' (valid or invalid) are all the permutations of the word ithsa. These words are obtained by scrambling the letters in ithsa.