This I have been sitting on for awhile. Below is a listing of some of the more important fertility deities, grouped by geography. If one starts with China and assumes a diffusion from that point over time, then the initial letter of deities’ names change by a predictable pattern; it moves along the plosive consonant chart. Generally in English, that is q->g->k->d->t->b->p. So the Chinese gods Nu-Kua and Kui begin with a phonetic “q”. Hindu gods begin with “g”, and have “k”. The fact that the names there continue up through “b” suggests that prehistoric India was inundated with several waves of fertility goddesses over a long period of time. History would support this conclusion. Their Greek cousins similarly had “g”, and “t” in their fertility goddesses, and several examples of the slightly off line “th”. Celts had “t”.
The Fertile Crescent had a “k”, while the next generation had “t” and the initial consonant was absent in another goddess. As one would expect, Egypt has the early “g” and slightly later “k”. Among the older cultures of Europe, the Basque have a “k” and the Etruscans a “t”.
The concept of a fertility goddess appears to have traveled in other directions as well. The Inuit have fertility beings beginning with a soft “g” and a “p”. Going south, the Polynesians have a “k” and “t”.
It should be said that listing below is not comprehensive of all the gods of every pantheon. On the other hand, I could easily add twice this number to a list if I was willing to account for other factors in consonant shifting. I think the data below stands well on its own, no need to complicate things.
What does it mean? The neat answer is that the concept of Mother Earth is a universal one that was developed through millennia of trade and given a standard name before the break up of trade routes with the development of martial regions in the fifth millennium. The honest answer is simply that what is summed up below represents something very interesting in the early development of human culture.