Every year I buy a carton of eggnog and it sits in my fridge unopened until sometime in January or February when I bring it to the dump. Why? Because eggnog is disgusting. Even the name is gross. And yet I am intrigued–read on: Eggnog! – History:

Other experts would have it that the “nog” of eggnog comes from the word “noggin”. A noggin was a small, wooden, carved mug. It was used to serve drinks at table in taverns (while drinks beside the fire were served in tankards). It is thought that eggnog started out as a mixture of Spanish “Sherry” and milk. The English called this concoction “Dry sack posset”. It is very easy to see how an egg drink in a noggin could become eggnog.