What is the origin of the term “heap” for the free store?

Question

I am trying to find the official (or a good enough) reason that the free store is commonly referred to as the heap.

Except for the fact that it grows from the end of

Answer 1

Just like java and javascript, heap (free store) and heap (data structure) are named such to insure that our fraternity is inpenetrable to outsiders, thus keeping our jobs secure.