di-iod- di-tri- diiodo- dioptid dipodid diritto dod-rot doo-doo doridid dortoir drippot droptop ididtoo idiopid idoodit ipo-ipo iridio- iridoid itororo oidioid oropioi otoitid ottrott pip-pip pip-pop piproid pitirri pitorro pitprop pittoid poo-poo pop-top poptrio poritid porritt portoir potiori potorid potoroo potrido priorit priorto prodrop propio- proport proprio ridotto riitiir riodoro rioport riotord rootrot rotoiti tip-top toi-toi too-too toritto torroid tototoo tottori tri-tip triiodo tripiti tripoto triptip tro-tro