I give up.
No, on second thoughts, since the O/P has invited a response, I will give it to him.
You clearly can't be arsed to look up what "onomastics" means. Let me advise that it is the study of the origin, history, and use of proper names.
Try re-reading your posts and compare and contrast your usage with that of others.
And please don't ask what a "proper name" is.