aggregometer agogetterram ampere-meter argyrogramma attemperator goatatmerger gotargetmare gotmeagerart great-great- greetmagator groom-porter magyaregregy margretetorp merry-totter metageometry metaoperator metaproperty metaproteome metemeetmeat meteorometer mmmmmmmmmmmm moremoremore mortgageport pagopagogogo party-pooper peer-to-peer poetrytrypoe port-o-potty preoperatory preprogramme preproperate protogrammar pyrotartrate ragtagmeteor regretmaotag reprogrammer roamerremora tarotarotaro tatararatata tattarrattat tearraappart teetertartar teetertotter tempertemper temporaryart term-trotter toagreatgerm togatogatoga toptoptoptop toratoratora yamamotoyama year-to-year yotta-ampere