effuser effuses effusus ferrere ferrers ferrure fresses fuggers furrure fussers gee-gee geegees gefrees greesse gregger gregree gru-gru gruffer grugrus guesser guesses gueures guffers gurue re-fuse re-user re-uses reefers referee referer referse refugee refuges refuser refuses regress regurge regusse rerefer resurge resurse reurges reusers ruffers ruggers seegers seeress seesees seggers sergers sssssss suffers suffuse sugeres surfers surfuse sursese userfee usurers usuress