The usual Tshi name for them appears to be bonsum or bossum: the word "duppy" I have been unable to trace.
Every duppy walks two feet above the ground, floating in the air.
The person on whom duppy is put becomes "tearing mad," and it requires a ten-pound fee to "take the shadow off."
One kind of duppy is a mermaid—but I can find no indication that she came from Africa.
If not a human being, it must be a “duppy, or de debbil hisself!”
Cubina, less given to superstitious inclinings, only for a moment permitted himself to be mystified with the idea of a “duppy.”
He then directs duppy to visit the person whose name he mentions, and goes away without looking behind him.
If a child is not christened before it is six months old, duppy will carry it away into the bush.
Such are the main beliefs with regard to this remarkable superstition of duppy on earth.
A duppy of one's own family is worse than a stranger's, and the "baddest" of all is Coolie duppy.