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cromniomancy
Divination with names, significant happenings, or missing persons which were written on onions, planted, and observed to see which one would sprout first.

The onion which sprouted most rapidly indicated that the person whose name had been inscribed on it was enjoying vigorous health.

Another application was that wishes would come true if one burnt onion skins on a fire. Sometimes the onions had to be placed on the altar at Christmas before they had any divine significance.

This entry is located in the following unit: -mancy, -mancer, -mantic, -mantical (page 5)