ceecee cercie cerice cerici ceruce cicree cicure circue cirice cirici cirri- ciucci crieff cruife cucice cucici cuffee cuffer cui-ui cuirie curcic curfur currer currie ecrier ecrire ecurie eerier effeir effere er-rif ericii eruci- erucic euerie feerie feifer feirie ferfer ferier ferrer ferri- ferric ferrie ferrur fiefie fierce frefre freire freure furfie furfur furrer furrfu i-crei i-free iffier recice recife recrue recrui recuer recure reefer reeffe refeff refire refrei refuce reueir reuere reuire ricice riffer rififi riuere rucici ruffec ruffer ruffie urcice urucui uruffe