sleet

nouns

partially melted snow (or a mixture of rain and snow)
sleet
is derived from
sleety
is a type of (narrower)
the falling to earth of any form of water (rain or snow or hail or sleet or mist)
downfall, precipitation

verbs

precipitate as a mixture of rain and snow
"If the temperature rises above freezing, it will probably sleet"
sleet
is a type of (narrower)
fall from clouds
"rain, snow and sleet were falling"; "Vesuvius precipitated its fiery, destructive rage on Herculaneum"
come down, fall, precipitate