symposion
A drinking together; a symposium.
historical
Captain Waverley,—my young and esteemed friend, Mr Falconer of Balmawhapple, has craved of my age and experience, as of one not wholly unskilled in the dependencies and punctilios of the duello or monomachia, to be his interlocutor in expressing to you the regret with which he calls to remembrance certain passages of our symposion last night, which could not but be highly displeasing to you, as serving for the time under this present existing government.
Where it comes from
Borrowed from Ancient Greek συμπόσιον (sumpósion).
Adapted from the Wiktionary entry symposion (CC BY-SA 4.0).