ignis fatuus Hear it!

ignis fatuus definition

ig·nis fatu·us (ig′nis fac̸h′o̵̅o̅ əs)

  1. jack-o'-lantern (sense )
  2. a deceptive hope, goal, or influence; delusion

Etymology: ML < L ignis, a fire + fatuus, foolish

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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