More about how new words are formed and what they might say about how long a language has been around.
John, I think you were born in 1915 :)
About "reduplication": in physics (cosmology, to be exact), the binding of loose electrons with loose protons in early Universe, as the hot plasma cooled, is called "recombination." (A hot plasma is the "fourth state of matter," where the electrons and nuclei are energetic enough to be ionized, unbound from each other.)
But they were never combined to begin with! I think it's borrowed from plasma physics of stellar atmospheres, where electrons and nuclei dissociate into ions, then recombine, then ionize again, then recombine, ... etc.
I would subscribe to Tax Law by John McWhorter, though I presume to think John would not be enticed to become an expert in such a topic, however the world so needed it.
I find your storytelling strangely soothing...