I’m sure this won’t be another rehash of U, like the letter V was. Or maybe it will as I’m already rehashing the opening statement.
The alphabet gif has a short lineage for W. See, it turns out, most other languages just used U/V for W. In Etruscan, a version of it was figure 8 they used for the F sound. It was the Germanic languages that used two U’s, or W, to signify the sound for V. It didn’t become “wah” until later, again in Germanic writings (where they also kind of used a P like symbol for the W sound).
So, in neater, list format:
F = V sound (it’s a soft F, so basically a V)
8 = HF sound (this would be a F like we know it)
V = U (makes the U sound; there is no W sound at all)
F = F (really only used for F as they didn’t use a V sound)
Y = U/W (It looks like a Y, but it’s really a V and it makes the U sound; still no W sound)
F = F (again, just F)
V = U (the sound)
VV = UU (started by Germanic languages for the V sound they had; later, it started to be wah instead of vah)
F = F
U = U
V = V
W = W