a large punch bowl, usually of silver, having a notched rim for suspending punch cups

Pronunciation:
mon-TEETH

In a sentence:
Trying to “get this party started,” Katherine decided to slip some E into the monteith; by the end of the night, the formal gathering had turned into a formidable love fest, and everyone was happy again.

In a different sentence:
The wedding guests were totally unprepared for what was in the monteith; the groomsmen, a set of raucous drunks, had spiked the whiskey with fruit punch.

Fact:
The Christmas song “Here We Come a-Wassailing” refers to the tradition of carrying mulled beer door-to-door in a monteith to share with one’s neighbors.