Yeah, but only forward in time

Might I tempt you with this alternative proposal?

Crazy assumption. Yes, it’s true for the English speaking world, but it’s much more nuanced outside of it. Here’s a map from Wikipedia:

https://en.m.wikipedia.org/wiki/Long_and_short_scales#/media/File:EScalas_corta_y_larga.svg

Keep in mind that your link to wiktionary only covers languages where it is spelled exactly “milliard”.

“the world”?

If you came over to the other side of the pond, you’d find that most of Europe is still using milliard, billiard, trilliard etc.

I guess this is the US of A? Here in a northern European country you get the option when you marry to keep your names, combine both, only keep the husband’s or only keep the wife’s.