ὄνειρον (oneiron)
ὄνειρον is an Ancient Greek form of ὄνειρος, meaning “dream”. It is the accusative singular masculine noun.
Found 78 times in the Ancient Greek texts on Socratos.
Where it is used
Apollonius Rhodius, Argonautica 2.197: ὀρθωθεὶς δʼ εὐνῆθεν, ἀκήριον ἠύτʼ ὄνειρον,
Lucian of Samosata, Juppiter Tragoedus 40: … ἡμῖν ὁ βέλτιστος Ζεὺς συναρπασθείς. ἀνθʼ ὧν καὶ ἀπομνημονεύων τῇ Θέτιδι τὴν εὐεργεσίαν ἐξαπατᾷ τὸν Ἀγαμέμνονα ὄνειρόν τινα ψευδῆ ἐπιπέμψας, ὡς πολλοὶ τῶν Ἀχαιῶν ἀποθάνοιεν. ὁρᾷς; ἀδύνατον γὰρ ἦν αὐτῷ κεραυνὸν ἐμβαλόντι καταφλέξ …
Lucian of Samosata, Bis accusatus sive tribunalia 1: … τας λέγοιμι καὶ παραπέμποντας τὰ πλοῖα καὶ τοῖς λικμῶσιν ἐπιπνέοντας, ἢ τὸν Ὕπνον ἐπὶ πάντας πετόμενον, ἢ τὸν Ὄνειρον μετὰ τοῦ Ὕπνου διανυκτερεύοντα καὶ ὑποφητεύοντα αὐτῷ;
All forms of ὄνειρος (declension table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Liddell-Scott-Jones, A Greek-English Lexicon (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.