Word Study
banshie
CIDE DICTIONARY
banshie, n. [Gael. bean-shith fairy; Gael. & Ir. bean woman + Gael. sith fairy.].
A supernatural being supposed to warn a family of the approaching death of one of its members, by wailing or singing in a mournful voice, as under the windows of the house. [Webster 1913 Suppl.]
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