filfil filius filli- fillip fillis fillup fislis fissi- fit-up fitful fittit flipps fluffs fulfil fullup fusils futtsu i-suit ifitis illfit illful illipi illlit illupi isists islisp istisu itfits itslit lifful liftup lifull lilipi lilius lillis lilliu lipstu lituit lituus liulis ltsulu lufful lullus lutist piilsi pilili pillus pilpul pipili pipipi pipits pippip pippul pissis pistil pistis pistul pitful pitill pitpit pittis pituil pituis piupiu piusii plitts plutil plutus pppppp ppsspp puffup pullip pullup pullus pulpi pulpit pulsus pultis pupils puppis pupput pusill pussi put-up putput putsup putups puutli s-plus siiiii silili silius sisisi sistil sisulu sit-up sitsup situps slipup sluffs spiffs spill- spills spilus spitup spitus spliff splifs split- splits stiffs stilfs stilli stills stilts stilus stipit stiups stpius stu-ii stuffs stuill stulls stulps stulti suffit sufli suists suitup sulili suppli susulu tiff-f tiflis tilius tillis tilsit tiltil tiltup tip-it tip-up tipful tipiti tippis tippit tisili titipu titius titlis titsup tittup tituli tituss tuipui tuiuti tulips tullus tussis tutill tuttis tuttul tuttut ulfuls ulitis ulpius ulutiu up-put upfill uplift upslip uptill uptilt ustult ustupu utilis