de-err deeded deedee deeder deedle defete deffer defter deleet delele delete deller derere derfde derfel derrer deterr detete detlef detter dreder drefle dterel eddled ederle efeler effere effete efreet efter- eldred eleele ellett errett ettled fedder feddle federd feeded feedee feeder feelde feeled feeler feered felder felled feller felted felter feltre ferder ferede ferfel ferfer ferred ferrel ferrer ferret fertee ferter fetter fettle fleete fletre freele frefre frelte fretel frette fterer fterre ledder leeder leelee leered leerer leetle leffel lefter lerret letted letter lettre r-tree re-let redded redder reddle redele redell redere redler redred redted reeded reedel reeder reedle reefed reefer reeffe reeled reeler refeed refeel refeet refeff refell refelt refert refete reffed reflee reflet refret refter releef reller rereel reteed reteer reteet retell retere retree retret retted rettel retter t-tree tedded tedder teeder teedle teelde teetee teeter telefe telele telete telfer telled tellee teller terdle terete terrel terrer terret terter tertre tetede tetele tetete tetter tredel treder treedl treete trefet trefle trefte tretee trette