effere effete effutu efreet efter- eggert erfurt errett etgert ettutu eutere ferfer fergee ferrer ferret ferrur fertee ferter fetter feture feuter frefre frette freure fterer fterre fuerte fugger furfur furrer furrfu futret futter future geegee gegger gerege gereut gerger gerret gertte geruge getter geufer greefe greete greffe greger gregge gregre greter grette gruffe grugru gteter guegue guerre guetre guffer gurugu guttee gutter guttur r-tree reefer reeffe refeet refeff refert refete refret refter refuge refute regret regufe reteer reteet retere retree retret retter rettur returf returu reuere reurge reuter reutte rufete ruffer ruffet rufter rugetu rugger rurutu rutger ruttee rutter t-tree teetee teeter terete terrer terret terter tertre tetete tetter treete trefet trefte treget tretee trette truett trufte tuffet tufter tugger tugrug turfer turgut turret turtur tururu tuteur tutter tuttut ufreet ureter urette uruffe uteute