ninth innth nnith nnith innth ninth nitnh intnh ntinh tninh itnnh tinnh nntih nntih ntnih tnnih ntnih tnnih intnh nitnh itnnh tinnh ntinh tninh ninht innht nniht nniht innht ninht nihnt inhnt nhint hnint ihnnt hinnt nnhit nnhit nhnit hnnit nhnit hnnit inhnt nihnt ihnnt hinnt nhint hnint nithn inthn ntihn tnihn itnhn tinhn nihtn inhtn nhitn hnitn ihntn hintn nthin tnhin nhtin hntin thnin htnin ithnn tihnn ihtnn hitnn thinn htinn nnthi nnthi ntnhi tnnhi ntnhi tnnhi nnhti nnhti nhnti hnnti nhnti hnnti nthni tnhni nhtni hntni thnni htnni nthni tnhni nhtni hntni thnni htnni inthn nithn itnhn tinhn ntihn tnihn inhtn nihtn ihntn hintn nhitn hnitn ithnn tihnn ihtnn hitnn thinn htinn nthin tnhin nhtin hntin thnin htnin
Note: these 'words' (valid or invalid) are all the permutations of the word ninth. These words are obtained by scrambling the letters in ninth.