filfil filius filli- fillip fillis fillup firlls firlus firsts fislis fissi- fit-up fitful fittit flipps flirts fluffs fluris flurri frills frisii fritts friuli fruits fruti- frutti fruupp fulfil fullup furfur furrfu fusils futtsu i-suit ifitis ifrits illfit illful illipi illlit illupi iris-t iritis irrupt isists islisp ispirt istisu istrup isurus itfits itslit ittiri iturup lifful liftup lifull lilipi lilius lillis lilliu lilpri lilpur liluri lippir lipstu lituit lituus liulis ltsulu lufful lullus lurulu lutist lutris piilsi pilili pillur pillus pilpul pipili pipipi pipiri pipits pippip pippul pirili pirrip pissis pistil pistis pistul pitful pitill pitpit pittis pituil pituis pituri piupiu piusii plitts plufur pluri- pluris plutil plutus pppppp ppsspp prifti prills pripps pruili pruitt prurit puffup pullip pullup pullur pullus pulpi pulpit pulsus pultis pupils puppis pupput puriri purisi purist purius purpit purpur purtsi puruli pusill pussi put-up putlur putput putsup puttur putups puutli rififi riflip riltsi rippit ripsup rititi ritius ruffus rurutu russus rutuli ruutli s-plus siiiii silili silius sipirs siriri sirius sirpur sirris sirrup sirsir sirtir sirtis sirtsi sirups sisisi sistil sistri sisulu sit-up sitsup situps slipup sluffs slurps spiffs spill- spills spilus spiri- spiris spirit spirts spitup spitus spliff splifs splirt split- splits splurt sprits spruit sprutt spurts sripur srprss sssfrs stiffs stilfs stilli stills stilts stilus stipit stirit stirps stirup stiups stpius striff strift striif strips stript strull strupt strust struts strutt stu-ii stuffs stuill stulls stulps stulti sturts suffit sufli suists suitup sulfur sulili sulpur suppli surful surili surtur susulu susurr tiff-f tiflis tilius tillis tilsit tiltil tiltup tip-it tip-up tipful tipiti tippis tippit tiptur tirful tirrit tisili titipu titiri titius titlis titsup tittup tituli tituss trills tripl- tripup tripus trisil trists trisul tritip tritsu truful truiff truitt trulli trulls trusts tsuris tsurui tuipui tuiuti tulips tullus turis turist turpis turris turssu turtur tururu tussis tussur tutill tuttis tuttul tuttut ulfuls ulitis ulpius ulutiu up-put upfill uplift uprist upslip upslur upstir upsurt uptill uptilt uritis uruppu usiris ussuri ustult ustupu usturi usurps utilis