IO: extinct Old English diphthong. Of the bajillions of possible sounds we can make with our voices, only a few are needed for language. We made this one redundant. Exiled. Fired its ass. It barely did anything around here. What’s it for? It’s absent from other Old English alphabet collections, the malingerer. It’s unwanted as far as we’re concerned. EO does everything IO can do, and does it better. We don’t need IO. What’s IO even doing here? Pack up your stuff IO and get out, you’re history.

But of course IO has to be difficult on its way out. Typical. Try carving this one into anything. You’ll need a precise hand and a sharp knife. A little finesse. This isn’t hammer and chisel like ᚢ. Make an X, now draw a line through it without slipping to one side or the other. Pass straight through that X’s meeting point, right down the middle and keep going. X on a stick.