harsh ahrsh hrash rhash arhsh rahsh hasrh ahsrh hsarh sharh ashrh sahrh hrsah rhsah hsrah shrah rshah srhah arshh rashh asrhh sarhh rsahh srahh harhs ahrhs hrahs rhahs arhhs rahhs hahrs ahhrs hhars hhars ahhrs hahrs hrhas rhhas hhras hhras rhhas hrhas arhhs rahhs ahrhs harhs rhahs hrahs hashr ahshr hsahr shahr ashhr sahhr hahsr ahhsr hhasr hhasr ahhsr hahsr hshar shhar hhsar hhsar shhar hshar ashhr sahhr ahshr hashr shahr hsahr hrsha rhsha hsrha shrha rshha srhha hrhsa rhhsa hhrsa hhrsa rhhsa hrhsa hshra shhra hhsra hhsra shhra hshra rshha srhha rhsha hrsha shrha hsrha arshh rashh asrhh sarhh rsahh srahh arhsh rahsh ahrsh harsh rhash hrash ashrh sahrh ahsrh hasrh sharh hsarh rshah srhah rhsah hrsah shrah hsrah
Note: these 'words' (valid or invalid) are all the permutations of the word harsh. These words are obtained by scrambling the letters in harsh.