effere effete effume effutu efreet efter- emeere emeter emeute emmert emmett emmure eretum erfurt errett ettutu eutere f-term femmer ferfer ferrer ferret ferrum ferrur fertee ferter fetter feture feuter frefre frette fretum freure fterer fterre fuerte furfur furrer furrfu furtum futret futter future m-tree meerut meeter meetme meetre mememe memere merete mermer mermet merrem merret merter merure meteer metrer metrum metter mettet mettur meurte muerte muette muffet mummer murmur murree murter mutere mutter muttur mutufu mutuum muumuu r-tree reefer reeffe refeet refeff refert refete refret refter refute remeet remete remeue remufe reteer reteet retere reterm retree retret retter rettur returf returu reuere reuter reutte reutum rufete ruffer ruffet rufter rummer rurutu ruttee rutter t-tree teemer teerme teetee teeter temere terete termer terrer terret terter tertre tetete tetter treete trefet trefte tremet tretee trette truett trufte tuffet tufter tumer tummer tumtum turfer turmer turmut turret turrum turtur tururu tuteur tutter tuttut tutume ufreet ureter urette uruffe uteute