Right, which is why I thought I had backup for Yahweh being the Jewish term when any term is used. The whole bit about the ineffable name of G-d started out with YHWH, which was literally ineffable, and as that's so close to Yahweh I thought Yahweh was an archaic Jewish term.

I was raised Catholic and though I heard the word Yahweh from time to time I never heard anyone actually reference God that way except when they were reading a formal text.