cippus circus cirici cirri- cirrus cissus ciucci cripps crisic crisis crispr crisps crisus crucis cruisr cruris crusis cucici cui-ui cupcui cupri- cupric curcic curius cursus cuscus cuspis isspic isurus picpus picric picris pipipi pipiri pippip pirici pirrip pisci- piscis pissis piupiu piusii pppppp ppsspp pripps prusci puccis puppis puriri purisi purius purpur pussi riccus ripsup riscpc ruccus rucici ruscus russus scipii scirii scirus scrips siccus siiiii sipirs siriri sirius sirpur sirris sirrup sirsir sirups sisici sisisi spici- spiri- spiric spiris sripur srprss succur succus sucuri suruc susurr upsssc urucui urucup uruppu uscipp usiris ussuri usurps