bilo-bilo biologist biorobots biro-biro birostris blogrolls bogo-bogo bolo-bolo boogiroot borborbor bosssssts bottiroli brig-glis gibbsboro gigliotti glosoli glossists glossitis glottitis glottolog gogoboots grig-gris grigorios gris-gris groo-groo grosssolt ibisbills issisisis itllstill oologists orologist orrisroot otogiriso otologist ottottrio rigorists rissillis rototills sitsstill slit-robo sorbitols stilbosis stilbotis stirgrits stribro strigilis strobilos tigrillos tilisolol tiltrotor titiribi trigortsi trilogist trisobbio trit-trot troisgots trolltoll trottoirs