Other Origins: These faeries were possibly native to ancient Canaan or Babylonia before being adopted into Hebrew Folklore.
Other Names: Dibbuk. The plural form is Dybbukkim, both words being transliterated from Hebrew.
Element: Air.
Appearance and Temperament: The Dybbuk (Dib-buck) has no corporeal form. It is a spirit only, and is of neither male nore female gender.
Their sole purpose is invading the bodies of humans to cause them to do evil or make mischief.
Time Most Active: All year.
Lore: Long before Judaism became the world's first codified, patriarchal religion, the Hebrew people had one of the richest pantheons of faery folklore ever known on the planet.
Much of this was borrowed from and shared with the other tribal peoples of the region.
Nearly all of this lore has been lost to us because it was successfully purged, first by the early rabbis and then again later by the first Christians.
The faery lore about the Dybbuk survived because it was best known at the time when both Jews and early Christians were trying to drive Rome from Israel and many of the tactics they were forced to take violated their religious ethics.
Thus grew up the still-popular phrase, "A Dybbuk must have gotten into me."
A Dybbuk is almost better described as a demon than a faery because of its power to temporarily possess a human body.
People believed possessed by one were thought to have reached this state through their own negative acts. Kabbalistic literature (Jewish and Gnostic mystic texts) gives specific protocol for exorcising a Dybbuk, much as the Catholic church prescribed similar ceremonies.
If you are interested in these ceremonies, look into the writings of Isaac Luria and Moses Cordovero. But if you are really in fear that a Dybbuk is near, any intense exorcism should banish it from you.
Or try using music to both drive it away and to protect yourself. Much of the music used in Judaism originally consisted of chants of protection meant to invoke the power of the deities against astral entities.
Dybbuks are thought to hate music so much that they will flee any place where musical notes can be heard.
The first written story about a Dybbuk was recorded in the early sixteenth century.
A rahter benign story about one which is still in print is the Jewish folktale The Dybbuk, by Ben Horovitz.