Remember a few years ago some official used the word “niggardly” and the perpetually offended blacks of the day rose up in outrage .... clearly not knowing what the word meant.
Toward the recent end of my career, I worked with a lot of young military types. All of them pretty smart, but not familiar with some things. I had to explain a lot of these terms and origins to them. My favorite one was “rabbit test” for pregnancy. For all of their lives it’s been peeing on a test stick.
-PJ