Frozen rain that falls in the form of small pellets; graupel or sleet.
From French 'grésil' (graupel), possibly from Old German or related to 'gres' (granular/sandy texture), describing the granular nature of frozen precipitation.
Gresil is a meteorological term that survived mainly in French and technical English, showing how different languages preserve distinct weather vocabulary—English speakers just say 'sleet.'
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