grutter gueret gum-gum gumtree gurue jerguer jugerum jurruru meemure megetme meggett meguet memmert mereret merrett mertert metreme metrete mettege metteur muggert mugguru murmure muu-muu r-meter regreet regurge remerge remueur reteere reterre retrete rettert reutter rum-tum temettu temuge terere tergett terreer terrere tettete treetee tregerg tremeur trettre trugger trummer tuggurt tum-tum tut-tut umuerum utterer

ergmeter gerettet greegree gum-tree mer-egee meremere murmurer muruguru murumuru mutterer reemerge remurmur teruteru tremerje

emmermeer muggermug re-emerge regretter terguette

mememememe mumme-tree

mmmmmmmmmmmm

grrrrrrrrrrrrrr