Christmas Linguistics: The word eggnog has recently been substantially antedated, by an impressive 51 years from its earliest citation in the OED.

Fog-drams i' th’ morn, or (better still) egg-nogg,
At night hot-suppings, and at mid-day, grogg,
My palate can regale

--A Glossary of Provincial and Archaic Words, Jonathan Boucher

It is also interesting that the earliest citation jumped a continent. The post cited asserts that a recipe for eggnog was found among Washington's papers at Mount Vernon.

Via Bradshaw of the Future, a blog which will of interest to those entertained by Indo-European roots.

Update: If you're truly interested, here's more.

Merry Christmas!