Which of these words originally referred to a drinking party?

Symposium is typically used today to describe a meeting of experts or a published collection of articles on a subject, but the word was first used in English to describe a sort of drinking party. In fact, the word originally comes from the ancient Greek sympinein, meaning 'to drink together.' Given its history, symposium serves as a useful reminder that the current meaning of a word will often have strayed far afield from its roots.

Source: Merriam-Webster