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ignis fatuus

Syllabification: (ig·nis fat·u·us)
Pronunciation: /ˈignəs ˈfaCHo͞oəs/

Definition of ignis fatuus

noun (plural ignes fatui /ˈignēz ˈfaCHo͞oˌī/)

  • a will-o'-the-wisp.
  • something deceptive or deluding.

Origin:

mid 16th century: modern Latin, literally 'foolish fire' (because of its erratic movement)

ignis fatuus in other Oxford dictionaries

Definition of ignis fatuus in the British & World English dictionary

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