Definition of ephialtes in English:

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ephialtes

Pronunciation: /ɛfɪˈaltiːz/

Entry from British & World English dictionary

noun (plural same)

rare
A nightmare.
Example sentences
  • Ephialtes could apparently manifest as both erotic and nonerotic nightmares.
  • The influential Greek physician Galen examined the causation of the nightmare or ephialtes during the second century AD.
  • To prevent the Ephialtes or night-mare we hang up a hollow stone in our stables.

Origin

Early 17th century: Greek ephialtēs, possibly from ephiallesthai 'leap on'.

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