di-iodo- dinitro- diondion dip-iron diproton dirtpoor doittoit dontdoit dorippid dottodot dripdrop dropinon i-ii-iii indition intropin iooooooo iridinid ironnoir irononto ironport ndrodoni nirrti nit-noid nitrido- nitrito- non-iron nondonor nonionid nononito nononono nonpoint nonprint nooddorp nootdorp norriton notition odontoid oniondip oppinion optionor ottorino p-poppin pin-drop pin-prod pinpoint pint-pot piripiri pit-prop poorpoor poritoid poroporo porpitid portitor potoroid priodont proditor propion- proporid protopod riodinid riotorto riottrio riroriro tiniroto tipi-tii tonitoni toottoot top-root torin-in torninto torotoro torpoint torridon torrioni tri-iod- triniti trinitr- trinitro triodion tripoint triprion troidini tropipop tropitid troponin trottoir