di-iod- di-tri- diiodo- diritto dirutor ditfurt ditroff dod-rot dodford dododou doo-doo doofoid dooutof doridid dorifto doriftu dortoir dortour dourdou duffort durfort f-droid fit-fit fit-out fitroot foo-foo foodoir footrot forroot fortord fortriu fortuit fou-fou fourtou fritiof furiiru furrour ididtoo idoodit iridio- iridoid itororo off-off oidioid otoitid ottrott outdoor outfoot outofit outroot riddour ridotto riitiir riodoro riotord riotour rootfor rootout rootrot rotoiti rudford rufford tofutti toi-toi too-too tordoff toritto torroid tortour tototoo tottori touroud triffid triiodo triurid tro-tro trotoff trotout turdoid turriff tut-tut ufotofu