shaky hsaky sahky ashky hasky ahsky shkay hskay skhay kshay hksay khsay sakhy askhy skahy ksahy akshy kashy haksy ahksy hkasy khasy akhsy kahsy shayk hsayk sahyk ashyk hasyk ahsyk shyak hsyak syhak yshak hysak yhsak sayhk asyhk syahk ysahk ayshk yashk haysk ahysk hyask yhask ayhsk yahsk shkya hskya skhya kshya hksya khsya shyka hsyka syhka yshka hyska yhska skyha ksyha sykha yskha kysha yksha hkysa khysa hyksa yhksa kyhsa ykhsa sakyh askyh skayh ksayh aksyh kasyh saykh asykh syakh ysakh ayskh yaskh skyah ksyah sykah yskah kysah yksah akysh kaysh ayksh yaksh kyash ykash hakys ahkys hkays khays akhys kahys hayks ahyks hyaks yhaks ayhks yahks hkyas khyas hykas yhkas kyhas ykhas akyhs kayhs aykhs yakhs kyahs ykahs
Note: these 'words' (valid or invalid) are all the permutations of the word shaky. These words are obtained by scrambling the letters in shaky.