Won’t

What a stupid contraction. Seriously. Will not does not become won’t. Show me where the “o” comes from, someone! Anyone! Etymology nerds, arise! From whence did this moronic, bastardised contraction emerge? And how do we stuff it back in a box and tape up the box and throw it overboard?

Or have I missed something, and it’s actually a perfectly sensible contraction of… something other than “will not”?