ἐνύπν-ιον · enypn-ion — LSJ
thing seen in sleep, in appos. with ὄνειρος, θεῖός μοι ἐνύπνιον ἦλθεν ὄνειρος a dream from the gods, a vision in sleep, came to me, Od. 14.495, Il. 2.56; ἐ. τὰ ἐς ἀνθρώπους πεπλανημένα Hdt. 7.16.β;. ἐ. παιδός the vision of a boy, AP 12.125 (Mel.): used adverbially, ἐ. ἑστιᾶσθαι ‘to feast with the Barmecide’, Ar. V. 1218; κακοδαίμονʼ οὕτω δεσπότην οὐδʼ ἐ. ἰδών Men. Pk. 169; later κατʼ ἐνύπνιον AP 11.150 (Ammian.); cf. sq.
after Hom., = ὄνειρος, dream, ὄψις ἐνυπνίου the vision of a dream, Hdt. 8.54; ὄψις ἐμφανὴς ἐνυπνίων A. Pers. 518, cf. 226, Pl. R. 572b; ἐνυπνίῳ πιθέσθαι Pi. O. 13.79; ἐ. ἰδεῖν Ar. V. 25, Pl. Plt. 290b; τέλεον τὸ ἐ. ἀποτετέλεσται Id. R. 443b; ἐνύπνια κρίνειν Theoc. 21.29, Sammelb. 685 (ii B. C.):—Artem. (1.1 b) distinguishes ἐνύπνιον a mere dream, and ὄνειρος a significant, prophetic one; but the distn. is not generally observed, exc. by Philo.