di-iodo- dinitro- diondion doittoit dontdoit dottodot duddroun duntroon i-ii-iii indition indution intuitor iooooooo iridinid ironnoir irononto itunundu iturrino ndrodoni nirrti nit-noid nitrido- nitrito- non-iron nondonor nonionid nononito nononono nonround nontutor nonunion norriton notition notturno nrutturn nutritor odontoid orodruin orunodoi otor-udu ottorino ouintini out-door out-turn riodinid riotorto riottrio riroriro root-run rotundi- rotundo- roundout runouton runround rutiodon tiniroto tioutiou tonitoni toottoot torin-in torninto torotoro torridon torrioni tourdion tourtour tri-iod- triniti trinitr- trinitro triodion troidini trottoir trunnion tunnoton turn-out turninto turnitin turniton turnonto turritid turturro unidroit unionoid