KU

--Driopteria filix chazaarcia, a type of fruit from the Caspian Sea. Daubmannus wrote the following about this fruit: The Khazars cultivate a kind of fruit that grows nowhere else in the world. It is covered with something resembling fish scales, or the scales of a cone; it grows on very tall trees; and the fruits on the branches look like the live fish innkeepers hang up by the fin to indicate that they serve fish chowder. Sometimes the fruit releases voices that sound like a chaffinch. It has a very cold and somewhat salty taste. Since it is so light and carries a pit that pulsates like a heart, when it drops from the branch in autumn, it floats for a while, fluttering its feathers as though swimming in the waves of the wind. Boys aim their slingshots at it, and even hawks are sometimes fooled and take the thing away in their beaks, thinking it is a fish. This explains the Khazar saying "The Arabs will eat us thinking, like the hawk, that we are fish, but we are ku." The word ku--the name of this fruit--was the only word the devil left in the memory of the Khazar Princess Ateh after she forgot her own language.

Sometimes, at night, you can hear the sound ku-ku! That is Princess Ateh uttering the only word she knows and weeping as she tries to remember her forgotten poems.