Until recently, I would have responded that my world has no concept of 'normal' humans to begin with. I was ready to dismiss the homophone naming as a strange coincidence.

[ But he's had a few weeks to really sit with this, and to remember some things. "Coincidence" would be far too convenient, when all other language perfectly maps onto the terms he is also familiar with. ]

The Church claims that the elda have inherited a 'heretical ancient magic' of some kind, which renders them tainted. Though this is doubtlessly propaganda twisted almost beyond recognition from the truth, I am beginning to believe there might be a link between the elda and 'humans' of whatever kind.