'klutz' originates from Yiddish, specifically the word 'klots,' where 'klots' meant 'block' or 'lump.'

'klots' transformed into the English word 'klutz' and eventually became the modern English word 'klutz' through American English.

Initially, it meant 'block' or 'lump,' but over time it evolved into its current meaning of 'a clumsy or awkward person.'