e-four eeuler efeler effere effoff effolo effore eleele ellore erroll errour euller eururo feeler feeror feller felloe feofor ferfel ferfer ferrel ferrer ferro- ferrol ferrur ferule fleure floree floroe floure fluor- fluoro flurre foelle foerre foller foofle foofoo foofur fooler forrel forrer forure foufou fouler fourer fourof fourou freele freeof frefre freure frollo froofe frrole fueler fuffle fufore fuller fullof furfur furler furole furore furour furrer furrfu leeful leelee leeloo leerer leffel lefull leoful leolo leroro llello lloro loffre loller loloru looloo lorrer louffe loulle loulou lourlo luffer lufful luller lurulu oferre oleelo oleole oooooo oreful orelle orloff orrell orrour ouelle ouerre ouller reefer reeffe reeler reeuel refeel refeff refell reflee refloo reflue refuel refurl releef reller relleu rellou rereel reroll reroof rerule reuele reuere reufol reuler reulle reulor reuour roelof roffle roflol rolfer rolleo roller roloff roofer rouffe rouful rouler rueful ruelle ruffer ruffle ruller ruurlo ulloor uoluel urouer uroure uruffe