raiks ariks riaks iraks airks iarks rakis arkis rkais krais akris karis rikas irkas rkias krias ikras kiras aikrs iakrs akirs kairs ikars kiars raisk arisk riask irask airsk iarsk rasik arsik rsaik sraik asrik sarik risak irsak rsiak sriak israk sirak aisrk iasrk asirk sairk isark siark raksi arksi rkasi krasi akrsi karsi raski arski rsaki sraki asrki sarki rksai krsai rskai srkai ksrai skrai aksri kasri askri sakri ksari skari riksa irksa rkisa krisa ikrsa kirsa riska irska rsika srika isrka sirka rksia krsia rskia srkia ksria skria iksra kisra iskra sikra ksira skira aiksr iaksr akisr kaisr ikasr kiasr aiskr iaskr asikr saikr isakr siakr aksir kasir askir sakir ksair skair iksar kisar iskar sikar ksiar skiar
Note: these 'words' (valid or invalid) are all the permutations of the word raiks. These words are obtained by scrambling the letters in raiks.