'dehydrator' originates from the English word 'dehydrate,' which is derived from the Greek prefix 'de-' meaning 'remove' and 'hydor' meaning 'water.'

'dehydrate' transformed from the Greek word 'hydor' and eventually became the modern English word 'dehydrate' through Latin and French influences.

Initially, it meant 'to remove water,' and this meaning has largely remained the same in modern usage.