fluor- fluoro foofoo foofur forfun foufou fourof fourou frollo fukuro fullof fullon funoon funrun furfur furour furrfu furuno kofuku kokofu kokoku kokolo kokoon kokoro kokoun kokufu kolluk kololo konnor konnur konrul kookoo koonur korkor kororo korunk koruru kouffo koukou koulfo koulou kouoro kourou kronor kronur kuknur kullur kulolo kuloor kululu kunkur kunlon kunlun kunnur kuo-fu kurkul kurkun kuroko kururu lloro lokono lokrur loloru lonnol lookon looloo loukou loulon loulou lourlo lufful lukulu lunlun lurulu nkonko nkoroo nofool noforn nolook non-no nonkon nonono nonoon noonoo noonor noroff noroof nounou nukkuu nuklon nukunu null-o nullor nurulu o-knon of-run okollo olokun oloron olorun oluklu on-off onklou onlook onroll ookroo oooooo orloff orokon oroluk orrour ouolon ouroun roflol rokkor rokuko rokuro rollon roloff ronnon ronron rouful rounou run-on runfor runoff ruurlo ulloor unfool unfork unfoul unfull unfurl unlook unlouk unlull unroll unroof urkulu urnful