cocco- cococo cocoon cocto- concon connon connor conoco contor coocoo cookoo cornon cornot corton cortot cotton crocco cronon croton k-rock knock- kokoon kokoro kokott konnor konton kontor kookoo kootoo korkor kororo kotoko kotono kronor kroton n-toon nkonko nkoroo nocto- nocton noktor non-no noncon nonkon nonono nonoon noonoo noonor noonto norcot norton notron notton nottoo o-knon oconto octoon oncorn ookroo oooooo orccon orokon oroton orrock ottoor rockon rockto rococo rocoto rokkor ronnon ronron rooton rotork rotton tktock to-on tonono tonoro tonton tookon tookto tootoo torcon tororo tortor totnor totoro totrot trocon tronto trotro