thagi htagi tahgi athgi hatgi ahtgi thgai htgai tghai gthai hgtai ghtai taghi atghi tgahi gtahi agthi gathi hagti ahgti hgati ghati aghti gahti thaig htaig tahig athig hatig ahtig thiag htiag tihag ithag hitag ihtag taihg atihg tiahg itahg aithg iathg haitg ahitg hiatg ihatg aihtg iahtg thgia htgia tghia gthia hgtia ghtia thiga htiga tihga ithga hitga ihtga tgiha gtiha tigha itgha githa igtha hgita ghita higta ihgta gihta ighta tagih atgih tgaih gtaih agtih gatih taigh atigh tiagh itagh aitgh iatgh tgiah gtiah tigah itgah gitah igtah agith gaith aigth iagth giath igath hagit ahgit hgait ghait aghit gahit haigt ahigt hiagt ihagt aihgt iahgt hgiat ghiat higat ihgat gihat ighat agiht gaiht aight iaght giaht igaht
Note: these 'words' (valid or invalid) are all the permutations of the word thagi. These words are obtained by scrambling the letters in thagi.