[kwhitefoot]

Ether is a perfectly valid spelling in British English. See meaning 3 at https://www.lexico.com/definition/ether.

[Aloha]

Its valid in American English too, frankly and see it used frequently.

Out of the ether, Ethernet and so on.

[m463]

so either aether or ether. :)

We take the name ethernet for granted now, but it really is quite a clever name.

nowadays it is practically just a point-to-point network, but the original implementation was a bunch of clients connected to their private "aether" all shouting out to each other.