ethos tehos ehtos hetos theos hteos etohs teohs eoths oeths toehs otehs ehots heots eohts oehts hoets ohets thoes htoes tohes othes hotes ohtes ethso tehso ehtso hetso theso hteso etsho tesho estho setho tseho steho ehsto hesto eshto sehto hseto sheto thseo htseo tsheo stheo hsteo shteo etosh teosh eotsh oetsh toesh otesh etsoh tesoh estoh setoh tseoh steoh eosth oesth esoth seoth oseth soeth toseh otseh tsoeh stoeh osteh soteh ehost heost eohst oehst hoest ohest ehsot hesot eshot sehot hseot sheot eosht oesht esoht seoht oseht soeht hoset ohset hsoet shoet oshet sohet those htose tohse othse hotse ohtse thsoe htsoe tshoe sthoe hstoe shtoe toshe otshe tsohe stohe osthe sothe hoste ohste hsote shote oshte sohte
Note: these 'words' (valid or invalid) are all the permutations of the word ethos. These words are obtained by scrambling the letters in ethos.