by 
This Video narrated by Amy Nieskens is from The Old Farmer’s Almanac.
From The Old Farmer’s Almanac
Full Moon Names
December’s Full Moon is called the Full Cold Moon. It is the month when the winter cold fastens its grip and the nights become long and dark.
This full Moon is also called the Long Nights Moon by some Native American tribes.
From Western Washington University
American Indians gave names to each of the full moons to keep track of the passing year. The names are associated with the entire month until the next full moon occurs. Since a lunar month averages 29 days, the dates of the moons change from year to year. Here are titles most closely associated with calendar months.
Here are two of those names:
Back East
Abenaki – Northeast, Maine
According to WWU, in the Abenaki language the name for December’s Moon is: “pebonkas” or “winter maker moon.”
Out West
Hopi – Southwest, Arizona
According to WWU, in the Hopi language the name for December’s Moon is: “kyaamuya” or “moon of respect.”