yetis eytis yteis tyeis etyis teyis yeits eyits yiets iyets eiyts ieyts yties tyies yites iytes tiyes ityes etiys teiys eitys ietys tieys iteys yetsi eytsi ytesi tyesi etysi teysi yesti eysti yseti syeti esyti seyti ytsei tysei ystei sytei tsyei styei etsyi tesyi estyi setyi tseyi steyi yeist eyist yiest iyest eiyst ieyst yesit eysit yseit syeit esyit seyit yiset iyset ysiet syiet isyet siyet eisyt iesyt esiyt seiyt iseyt sieyt ytise tyise yitse iytse tiyse ityse ytsie tysie ystie sytie tsyie styie yiste iyste ysite syite isyte siyte tisye itsye tsiye stiye istye sitye etisy teisy eitsy ietsy tiesy itesy etsiy tesiy estiy setiy tseiy steiy eisty iesty esity seity isety siety tisey itsey tsiey stiey istey sitey
Note: these 'words' (valid or invalid) are all the permutations of the word yetis. These words are obtained by scrambling the letters in yetis.