I was practically begging for correction. But that's one I should have gotten. It just is so familiar to say pray for us, that it never hit me that it wasn't "nobis," not "eo."
Also: Iacobe is, oddly, "James."
Iacobe -> Jacobus -> Jac'bus -> Jamus -> James.
The transfer from Jac'bus to Jamus makes more sense once you mouth it.