^Well, sure, but I wanted to make the point about how the intent behind the abbreviation has been misinterpreted by some people.
Oh, right. Yeah, in particular, it's not
a swipe against Christ, at least not intentionally, as far as I know. It simply stands for the initial, in Greek.
And pronouncing X like Chi would be a wholly different pronunciation from ex, in Ancient Greek approximately aspirated k. Which brings us back full circle to Kz, almost at least.