Here’s a fun fact that will make you sound smart at dinner. The “corn” in corned beef has nothing to do with corn. In Old English, “corn” meant any small, hard grain or seed. The salt crystals used to cure the beef were as big as corn kernels. So, they called it “corned” beef. Cute, right?
Roast beef doesn’t have a cute origin story. It’s literally just a big piece of beef that you roast. Sometimes the simplest names are the best, don't you think? It tells you exactly what you’re getting: beef that was roasted.