Why is reflection called reflection instead of introspection?

Question

What is the origin of the term reflection? It seems more like introspection. Why isn\'t it called that?

Introspection: A looking inward; specifically, the act or p

Answer 1

Reflection, in the sense of definitions 3 and 4, can be introspective. That is, introspection is reflection on one's self. I think that introspection is the better word to use for the act of code analyzing itself because the word is more specific, but I don't think reflection is entirely inappropriate.