Where does the word “Banshee” come from and What does Banshee mean in Gaelic?

The Gaelic is bean sidhe, “female fairy,” which, believe it or not, is transcribed phonetically as banshee in English.

The Standard Dictionary of Folklore (1949) describes her as, usually, a beautiful woman, though sometimes a hag, whose appearance, according to Irish folklore, foretells the death of someone close to one’s family.