The following is from NPR's website. I was frankly quite surprised to learn that Constantinople had a part to play in this most American of holidays!
Why A Turkey Is Called A Turkey
by Robert Krulwich
Morning Edition, November 27, 2008 ·
Here's the puzzle:
The bird we eat on Thanksgiving is an exclusively North American animal. It is found in the wild on no other continent but ours. It evolved here. So why is this American bird named for a Eurasian country?
To find out, I went back to an interview I did almost 30 years ago on NPR's Morning Edition with Mario Pei, a Columbia University professor of Romance languages, who died shortly after our conversation.
I return to his answer because it is still the best one available.
Professor Pei had two theories.
First, in the 1500s when the American bird first arrived in Great Britain, it was shipped in by merchants in the East, mostly from Constantinople (who'd brought the bird over from America).
Since it wholesaled out of Turkey, the British referred to it as a "Turkey coq." In fact, the British weren't particularly precise about products arriving from the East. Persian carpets were called "Turkey rugs." Indian flour was called "Turkey flour." Hungarian carpet bags were called "Turkey bags."
If a product came to London from the far side of the Danube, Londoners labeled it "Turkey" and that's what happened to the American bird. Thus, an American bird got the name Turkey-coq, which was then shortened to "Turkey."
Or…Theory No. 2 (and maybe both theories are correct): Long before Christopher Columbus went to America, Europeans already had a wild fowl they liked to eat. It came from Guinea, in Western Africa. It was a guinea fowl, imported to Europe by, yes, Turkish merchants. It was eaten in London. So it got the nickname Turkey coq, because it came from Constantinople.
When British settlers got off the Mayflower in Massachusetts Bay Colony and saw their first American woodland fowl, even though it is larger than the African Guinea fowl, they decided to call it by the name they already used for the African bird. Wild forest birds like that were called "turkeys" at home.
Why not use the same name in Plymouth? And Boston? And Rhode Island? So a name attached to an African bird got reattached to an American one.
The point is for 500 years now, this proud (if not exactly brilliant) American animal has never had a truly American name.
And just to keep this ball rolling…all over the world, people now can eat American Turkeys, but they don't call them Turkeys.
Across Arabia, they call our bird "diiq Hindi," or the "Indian rooster."
In Russia, it's "Indjushka," bird of India.
In Poland, "Inyczka"— again "bird from India."
And what, we wondered, do the Turks call our turkey?
Well, they call it "Hindi," again, short for India.
So in 1492, because Columbus wanted to be in the "Indies," our North American bird got robbed of its American-ness, which is why tonight, when you look down at your turkey, don't call it "sahib."
Call it "dude."