Emacs was originally short for "Editing MACroS" and the first version was written in TECO.
Back in the days when I was working on Multics, we used to play a game with TECO, as most of its commands were single characters IIRC: type in your initials/name and see what it does.
I see from the wikipedia article that we were not alone in this.
Some of those key binding make sense if you're old enough: I started using emacs c1981.
The W in C-W and Alt-W stood for "wipe" and the Y in C-Y for "yank".