Knife and Sword

Karkin is a word that's usually translated knife, but it's always nice in the context of knife being a weapon because it's etymology is related to the word for blood. So kind of, I was talking about the purposes of the different tools rather than their shape or form exactly. And then the word for like a knife is a tool as a non-violent tool is something else. You never have to worry about that, but English, you don't know, right?