circus cirici cirri- cirrus cissus cistic cistir cistus citri- citric citris ciucci cricut crisic crisis cristi crisus critic crucis cruisr cruris crusis crusts cucici cui-ui curcic curius cursus curtis curtus cuscus custis cutcut cutsit i-suit iris-t iritic iritis isists istisu isurus ittiri riccus rictus rititi ritius ruccus rucici rurutu ruscus russus rustic scirii scirus scriit scurtu scuti- scutus siccus siiiii siriri sirius sirris sirsir sirtir sirtis sirtsi sisici sisisi sistri stirit stitic strict struct strust struts strutt sttstc stu-ii sturts succur succus sucuri suists surtur suruc susurr ticcit ticici ticusu tiiscs tirrit tisics titiri titius tituss trists tritsu truitt trusts tsuris tsurui tucuti tuiuti turici turis turist turris turssu turtur turucu tururu tussic tussis tussur tuttis tuttut urcuit uritis urucui usiris ussuri usturi