- Big Bang
- Imaginary numbers
- Balloon framing
What else?
Scotch tape.
Quaker
Yankee
Shaker
Methodist
Obamacare
I don’t think Obamacare would count since the real name for that has always been the Affordable Care Act.
Quakers I know don’t call themselves that. They just call themselves Friends.
Comanche (from the Ute word for “enemy”) (their endonym is Nʉmʉnʉʉ, but only a vanishingly small number of modern Comanche still speak that language)
Eskimo probably comes from a Montagnais word meaning “snowshoe-netter”, and is not especially derogatory. It is a massive insult in Canada, however, but not in America, and it is commonly self-applied in Alaska.
Capitalism
May be mistaken:
Orthodox (Judaism)
Reform (Judaism)
Religion will have plenty of such terms. Sometimes it seems like religious disagreements can turn acrimonious.
I vaguely remember something about a part of evolutionary theory being named after a term used by its opponents to discredit it.
The name San for Bushmen has become the de facto accepted nomenclature, even though it originated as a pastoralist Khoe-khoen pejorative meaning, essentially, “forager/person without cattle(implied:without worth)” . The ones of my acquaintance prefer Bushman, even though that’s also pejorative, but they’re definitely in the minority.
Gothic architecture
Krautrock
Anarchists.
I think Mensheviks, too, as well as Tatars.
That’s the name of the act. The set of programs resulting from the act doesn’t have an official name, AFAIK, but supporters including, I think, Obama himself have started calling it Obamacare. When everyone calls something X, that’s the real name for it, even if a more official name also exists (and especially if one doesn’t).
I grew up Quaker and all the Quakers I knew called themselves that. Friends was used more formally, and some preferred it, but Quaker was very widespread, and I don’t think anyone avoided it completely.
Not exactly a term but I believe the thought experiment with Schrodinger’s cat was originally intended to point out the flaws in quantum theory by showing how it led to an absurdity like a cat being simultaneously dead and alive. But quantum theorists said that result was correct despite its apparent absurdity and they embraced the thought experiment as an illustration of how quantum mechanics worked.
Mormons is another term that was originally used by outsiders to denigrate the believers in a religion but which was taken up by the believers themselves.
“Ham” for amateur radio operators.
I never knew the term “squaw” was a derogatory term.
The thing is, people can scream “OBAMACARE” as much as they want, but I don’t think that Obama has a problem with his name inextricably being linked to something that is actually pretty popular.
spaghetti westerns