ephialtes vigilantium
   The term ephialtes vigilantium comes from the Greek noun ephialtes (leaper, 'the one who jumps upon') and the Latin adjective vigilans (waking, awake). It translates loosely as 'a nightmare of those awake'. It is used in the older literature as a synonym for " daymare. The term ephialtes vig-ilantium is used in opposition to "ephialtes noc-turnus (i.e. " nightmare).
   References
   Good, J.M. (1823). The study ofmedicine. In four volumes. Boston, MA: Wells and Lilly.

Dictionary of Hallucinations. . 2010.

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  • ephialtes —    Also known as Ephialtis. Both names stem from the Greek noun ephialtes (also spelled as epialtes), which means leaper, or the one who jumps upon . In Greek mythology Ephialtes, a manifestation of Pan, was considered the daimon of nightmares.… …   Dictionary of Hallucinations

  • ephialtes nocturnus —    The term ephialtes nocturnus comes from the Greek noun ephialtes (leaper, the one who jumps upon ) and the Latin adjective nocturnus (nightly). It is used in the older literature as a synonym for nightmare. The term ephialtes noctur nus is… …   Dictionary of Hallucinations

  • daymare —    Also known as ephialtes vigilantium. The term daymare is indebted to the Old English noun mare, which means hag or goblin. It is used to denote an episode of acute anxiety, distress, or terror occurring during a period of wakefulness, which is …   Dictionary of Hallucinations

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