Definition of ephialtes in English:


Line breaks: ephi|al¦tes
Pronunciation: /ɛfɪˈaltiːz

noun (plural same)

A nightmare.
More example sentences
  • The black seed also taken before bedtime, is very effectual for such as in their sleep are troubled with the disease called Ephialtes.
  • The ephialtes, or nightmare, is called by the common people witch-riding.
  • To prevent the Ephialtes or night-mare we hang up a hollow stone in our stables.


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

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