ignis fatuus
Americannoun
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ignes fatui
plural
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Also called friar's lantern, will-o'-the-wisp. a flitting phosphorescent light seen at night, chiefly over marshy ground, and believed to be due to spontaneous combustion of gas from decomposed organic matter.
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something deluding or misleading.
noun
Other Word Forms
Noun Inflected Forms
Etymology
Origin of ignis fatuus
1555–65; < Medieval Latin: literally, foolish fire
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Character, the vital principle of the individual, is the ignis fatuus of the mechanical biographer.
From Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 3 "Borgia, Lucrezia" to "Bradford, John" by Various
The ignis fatuus is almost extinct; so much so that Jack-o’-the-Lantern has died out of the village folklore.
From Wild Life in a Southern County by Richard Jefferies
Silent and alone, she saw the signal-light of the steamer moving like an ignis fatuus along the empurpled bosom of the water—at length suddenly disappearing behind the battlements of the Fort.
From The Child Wife by Mayne Reid
Now, let the reader examine and study these definitions of Liberty by Paley, Montesquieu and Blackstone, and he will see that they are in pursuit of an ignis fatuus that eludes their grasp.
From Cannibals all! or, Slaves without masters by George Fitzhugh
Love is not the offspring of an hour or a day, nor is it the ignis fatuus which plays about the brain, and disturbs the sleep of the youth and the maiden in their teens.
From Wilson's Tales of the Borders and of Scotland, Vol. 9 by Various
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.
