Online, it seems like everyone thinks the word "misnomer" means misconception. I see so many people use it. Eg "Einstein wasn't bad at math, he was a good student. That's just a misnomer"
It doesn't mean that, it means a name that doesnt fit. Eg. Lead (made of graphite), Firefly (not a fly), Peanut (not a nut), French Fries (Not French). Mis(wrong)Nomer(name) it's right in the word.
Idk why but it pisses me off to watch language deteriorate in real-time, especially because misnomer is such a good word.