c-trie ceecee ceitec cercie cerete cerice cerici cerite certie cicree cirice cirici cirri- citect citice citri- citric creete cretic critic ecrier ecrire eerect eerier ericii errett etcetc i-crei i-tree icter- iritic irrite ittiri r-tree receit recice reciet recite recti- reiter retece reteer reteet retere retire retree retret retter ricet ricice rieter riette rietti rititi ritter t-tree tecici teetee teeter teirce teirei tercer tercet terete terrer terret terric terrie territ terter tertre tetete tetric tetter ticcer ticcit ticici tierer tieret tiete tietie tirret tirrit titiri tittee titter tittie tr-rec treece treete tretee tretie trette tritec triter trtice