'sleet' originates from Old English, specifically the word 'slēot,' where 'slēot' meant 'sleet or hail.'

'slēot' changed from Old English word 'slēot' and eventually became the modern English word 'sleet'.

Initially, it meant 'sleet or hail,' but over time it evolved into its current meaning of 'a form of precipitation consisting of ice pellets.'