aatrh aatrh atarh taarh atarh taarh aarth aarth arath raath arath raath atrah tarah artah ratah traah rtaah atrah tarah artah ratah traah rtaah aathr aathr atahr taahr atahr taahr aahtr aahtr ahatr haatr ahatr haatr athar tahar ahtar hatar thaar htaar athar tahar ahtar hatar thaar htaar aarht aarht araht raaht araht raaht aahrt aahrt ahart haart ahart haart arhat rahat ahrat harat rhaat hraat arhat rahat ahrat harat rhaat hraat atrha tarha artha ratha traha rtaha athra tahra ahtra hatra thara htara arhta rahta ahrta harta rhata hrata trhaa rthaa thraa htraa rhtaa hrtaa atrha tarha artha ratha traha rtaha athra tahra ahtra hatra thara htara arhta rahta ahrta harta rhata hrata trhaa rthaa thraa htraa rhtaa hrtaa
Note: these 'words' (valid or invalid) are all the permutations of the word aatrh. These words are obtained by scrambling the letters in aatrh.