cloun- clouun co-opn cocco- cockup cococo cocolo cocool cocoon colln collo- collon collop collup coloop colpo- colpon concon conlon connon conoco coocoo cookoo cookop cookup coopup copull coulon coupon coupul cuckoo culpon cupolo cuppul cupulo klocko klokoc klucko knock- kokoku kokolo kokoon kokopo kokopu kokoun kolluk kololo kolpo- kookoo koopoo koukou koulou kukoc kulolo kululu kunlon kunlun kupolo lockon lockup locock lokono lollop loncco loncon lonnol lookon lookup looloo loopco loplop loukou loulon loulou lucon lukulu lunlun nkonko nokpul nolook noluck non-no non-op noncon nonkon nonono nonoon noonoo nopulp nounou nuclon nukkuu nuklon nukunu null-o o-knon oclock oculo- okollo okpoko olluco olokun oluklu onklou onlock onlook oooooo opocno oukoop ouolon plocko plonko plonno pocock pocono pokpon polcon polloc pollok polpol ponoko pookoo poopoo pop-up popopo poppop populo poupko poupon poupou pppppp pucol pucon pullno pullon pullup punpun puukko ucuncu ullock ulluco ullucu uncock uncook uncool uncoop unlock unlook unloop unlouk unluck unlull unnock unpoco unpunk unu-op uplock uplook uponon uppcon