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Avernus

[uh-vur-nuh s]
noun
  1. a lake near Naples, Italy, looked upon in ancient times as an entrance to hell, from whose waters vile-smelling vapors arose, supposedly killing birds flying over it.
  2. hell.
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Origin of Avernus

< Latin < Greek áornos birdless, equivalent to a- a-6 + órn(is) bird + -os adj. suffix
Related formsA·ver·nal, adjective

Averno

[uh-vur-noh; Italian ah-ver-naw]
noun
  1. a crater lake in S Italy, near Naples and the Tyrrhenian Sea, thought by ancients to be the entrance to the underworld.
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Ancient A·ver·nus.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for avernus'

Averno

noun
  1. a crater lake in Italy, near Naples: in ancient times regarded as an entrance to hellLatin name: Avernus (əˈvɜːnəs)
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Word Origin for Averno

from Latin, from Greek aornos without birds, from a- 1 + ornis bird; referring to the legend that the lake's sulphurous exhalations killed birds
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012