Groggy
Adjective: drunk, intoxicated, dizzy.
Derived from Old Grogram - the nick name given to British Admiral Edward Vernon (1684-1757). Vernon wore a cloak made of grogram, a course fabric which became his trademark. During Admiral Vernon's tenure, it was customary for the Royal Navy to serve its sailors straight (neat) rum. Vernon, on the other hand, served his sailors a concoction of both rum and water which became known as Grog in honor of Old Grogram. It was not much of a leap to go from Grog (noun) to Groggy (adjective).
So there you go - the next time you feel groggy you can think of Old Admiral Grogram and his crew of fellow groggy sailors zig zagging the Seven Seas.