fairy stone
Americannoun
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a fossil or other oddly shaped stone or crystal.
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a stone arrowhead.
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a megalith or other stone monument of ancient origin.
Etymology
Origin of fairy stone
First recorded in 1785–95
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.