
Botanomancy is the art of divination by burning branches of trees or herbs. The most common branches used are Vervain and Briar. The fire and the smoke are both read to indicate which course of action should be taken. Botanomancy can be traced back to Druidic tree worship. ...
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http://en.wikipedia.org/wiki/Botanomancy

divination using burning branches or plants
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http://phrontistery.info/b.html

• (n.) An ancient species of divination by means of plants, esp. sage and fig leaves.
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http://thinkexist.com/dictionary/meaning/botanomancy/
Bot'a·no·man`cy noun [
Botany +
-mancy : confer French
botanomantie .] An ancient species of divination by means of plants, esp. sage and fig leaves.
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http://www.encyclo.co.uk/webster/B/83

Botanomancy is divination by means of plants, or more accurately leaves. Words were written on large leaves which were then exposed to the wind. The remaining leaves providing the response.
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http://www.probertencyclopaedia.com/browse/AB.HTM

botanomancy Divination with plants, herbs; a method of divination by burning the branches of vervein [now, vervain; `verbena, sacred boughs or certain medicinal plants”] and brier, upon which were carved the questions of the diviner. Variations included scattering the leaves of vervein [vervain] or heather in a high wind. Another method was by w...
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http://www.wordinfo.info/words/index/info/view_unit/311/
No exact match found.