floko flook floss fluff fluo- fluss fofos fokus folks follo fooks fools fouls fu-fu fuffs fulks fullf fullo fulls fuso- fusus kloof kloos kloss ko-ko koffs kokko kokos kokou koksu kolff kolks kollo kollu kolol kolos kolsk kooks kools koolu kosku kosso koufu koulo kuffs kukko kukok kuksu kullo kullu kulul kulus kusuo kuusk lofos lofou loksu lollo lolls lolol lolos lookf looks lools loosu losku louss luffs lukko lukok lukou lulls lulul lulus lusks luso- lusso lusus offof oflos ofosu okfol okuku olfus olous olsok ooooo osfok oskol ososo ossos osusu oullo s-k-o sfouf skoff skoko skoll skols skool skulk skull sloff sloos sloss slouk sluff sluss so-lo so-so sokol sokos solok solos soluk solus sooks soolu soss- sosus souff souks soulo souls sous- sssss suffs suflu sukko sukuk sulf- sulfo sulks sulls suluk sulus susso susuk susus ufofu ulous ululu us-ks uskok uuuuu