First you say Catholics do not pray to Mary, and now you make a misleading statement, as if the NT was originally written in Latin (original Latin) or as if that determines what it said in the original Greek, which it does not.
Lk. 1:28 and Eph. 1:6 both have believers "graced."
And do you know what the first English translation was?
The Vulgate was Latin translated by St. Jerome. I’m sure you are aware of that fact, correct?
I suspect he might think it's the Douay-Rheims, lol.