出典:Wiktionary
From Middle English clumsen, clomsen, cloumsen, from Old Norse *klumsa (compare Old Norse klumsa (“lock-jawed”)), whence also dialectal Norwegian klumsa (“to make speechless または benumbed”), dialectal Swedish klumsen (“numb with cold”). Compare related Low German verklamen, Dutch kleumen, verkleumen, German verklomen.
clumse (comparative more clumse, superlative most clumse)