serein - n., a fine rain that sometimes falls from a cloudless sky just after sunset.
Pronounce as if French, with stress on the second syllable with a nasal vowel, because, duh, it is French -- in turn coming from Middle French serain evening, nightfall, from Latin sērus, late. As for the phenomenon itself, the American Meteorological Society considers it "doubtful," claiming that thin clouds to windward can usually account for it, and asserts that the sunset part of it comes from the folkloric belief in dew "falling."
---L.
Pronounce as if French, with stress on the second syllable with a nasal vowel, because, duh, it is French -- in turn coming from Middle French serain evening, nightfall, from Latin sērus, late. As for the phenomenon itself, the American Meteorological Society considers it "doubtful," claiming that thin clouds to windward can usually account for it, and asserts that the sunset part of it comes from the folkloric belief in dew "falling."
---L.