Συμπόσιον (Symposion)
Συμπόσιον means “Symposion — drinking-party, symposium; the party itself, the guests; groups”.
Ancient Greek word, found once in the texts on Socratos.
Where it is used
Diogenes Laertius, Vitae philosophorum 6.1.14: … τʼ εἶναι καὶ διʼ ὁμιλίας ἐμμελοῦς ὑπαγαγέσθαι πάνθʼ ὁντινοῦν. δῆλον δʼ ἐκ τῶν συγγραμμάτων κἀκ τοῦ Ξενοφῶντος Συμποσίου. δοκεῖ δὲ καὶ τῆς ἀνδρωδεστάτης Στωικῆς κατάρξαι· ὅθεν καὶ Ἀθήναιος ὁ ἐπιγραμματοποιὸς περὶ αὐτῶν φησὶν οὕτως …
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.