irety riety ierty eirty reity erity irtey ritey itrey tirey rtiey triey ietry eitry itery tiery etiry teiry retiy ertiy rteiy treiy etriy teriy ireyt rieyt ieryt eiryt reiyt eriyt iryet riyet iyret yiret ryiet yriet ieyrt eiyrt iyert yiert eyirt yeirt reyit eryit ryeit yreit eyrit yerit irtye ritye itrye tirye rtiye triye iryte riyte iyrte yirte ryite yrite ityre tiyre iytre yitre tyire ytire rtyie tryie rytie yrtie tyrie ytrie ietyr eityr iteyr tieyr etiyr teiyr ieytr eiytr iyetr yietr eyitr yeitr ityer tiyer iyter yiter tyier ytier etyir teyir eytir yetir tyeir yteir retyi ertyi rteyi treyi etryi teryi reyti eryti ryeti yreti eyrti yerti rtyei tryei rytei yrtei tyrei ytrei etyri teyri eytri yetri tyeri yteri
Note: these 'words' (valid or invalid) are all the permutations of the word irety. These words are obtained by scrambling the letters in irety.