ἐφι·άλτης, ου (ὁ) cauchemar (litt. qui saute sur, qui oppresse) STR. 19 ; DIOSC. 3, 157 ; ARTÉM. 214 Reiff.

➳ Éol. ἐπιάλτης, ALC. 129.

Étym. p.-ê. pré-grec ; ἐπί, ἅλλομαι « sauter sur quelqu’un » par étym. populaire.

ου, ὁ, Aeol. ἐπιάλτης Alc. 129, also ἐπίαλος ibid. : — nightmare, conceived as a throttling demon, Phryn.Com. 1, Dsc. 3.140 (pl.), Artem. 2.37, Ruf. ap. Orib. 7.26.177, Str. 1.2.8; pr. n. of one of the Aloidae, Il. 5.385, Od. 11.308, Pi. P. 4.89 (Ἐπ- acc. to Sch. Od. l.c., cf. A.D. Synt. 179.22), and Att. pr. n., cf. Acl. Dion. Fr. 381, IG1². 950.92, etc. (Identified with ἠπιόλης by A.D. Fr. 8.12 (or Apollodorus, v. Sophr. 68 note); ἐπιάλτης is expld. as ῥιγοπύρετον by Suid. ; popularly connected with ἐφάλλομαι, Sch. B Il. 5.385, or ἐφιάλλω, EM 403.32; cf.
incubo.)

ὁ, = ἐπιάλτης, der Alp, eigtl. der Aufspringer, incubo, VLL.