First, I think you underestimate the knowledge level of the average Catholic. They may not be able to articulate the Hypostatic Union or the doctrines related to the Holy Trinity, but I’m pretty sure that even those subjected to the most liberal and progressivist agenda understand “hallowed” and “trespass” and if asked on a test to loosely define “hallowed,” “trespass,” “debita”, “sanctificetor”, or “consubstantialem,” they’d be able to nail the first two, possibly associate “debita” with “debt,” but probably fade on “sanctificetor,” and be utterly lost on “consubstantialem.”
This is where you and I fundamentally disagree about translation (I was going to write you a private letter after the other thread closed)." If even “hallowed” and “tresspassed” have to be translated for some (and I doubt many who’ve have at least rudimentary catechism), how much more the Latin? And the silliness about copyrights aside (public domain, anyone? The Mass and the prayers of the Church are centuries old), all of it has to be explained and to explain, it has to be translated, even if only loosely (in a verbal explanation, which doesn’t trouble itslef over copyright). My point is that translation is inevitable. “Consubstantialem” has been translated in slightly different ways, but all the translations are basically “one in being with” or “of the same substance with.” People use that to understand that part of the creed and if “consubstantialem” is all they have, it’s going to have to be explained. I’d be willing to bet that thereafter, if one could slow down and freeze frame the thought processes of at least thoughtful and attentive Catholics when saying the Creed as it will be in the new translation, most people will be thinking “Consubstantial=one in being with” or “Consubstantial=of the same substance with.” They aren’t going to simply think “consubstantial.” Why? Because they’re going to attach meaning, a definition to that word and that meaning, that definition, certainly are not going to be in Latin. When they’re asked by the unknowing “What does consubstantial mean?”, they aren’t simply going to say, "It’s from the Latin “consubstantialem.” They may start like that, but they’re going to go on to say, “It means Jesus is one in being with the Father, of the same substance of the Father.” The Latin will always have to be translated, even if only in the mind of the hearer. And if the essential, important doctrine which “Consubstantialem” is meant to represent, to portray, to convey, to name (really, to symbolize abstractly a concrete Truth) can ONLY be represented, conveyed, named by “consubstantialem,” then we will never understand it in even a rudimentary way (as it’s a mystery, we cannot fully encompass it anyway).