f-mount foo-foo footrot forroot fortorn fortumo foton-m fou-fou fourmor fourtou fromont fronto- fronton frotton fur-nut furrour futrono futurum monfort monfumo montoro montour montuno monuron moo-moo moonfor mormont morrum mortuum mottron moumoon moumour mounton mourron moutrot mu-tron munnuru muu-muu nonroof nontort nontron noroton nortoft nortorf nortour not-out nouturn nufront num-num off-off offform on-foot onoffon ornotto ortofon ortono ottrott outfoot outform outroom outroot outturn roomfor rootfor rootout rootrot rototom rum-tum run-off run-out runfrom t-mount to-morn tom-tom tomofun tonfon too-too tornoff tornour tornout toronto tortour tototoo toumour tournon tro-tro trotoff trotout tuffoon tum-tum turn-on turn-to turnoff turnour turnout tut-tut ufotofu unmount ur-form