The term "eikon" has been used by the Garlean Empire. Some have used different phrases, but we term entities such as Ifrit, Phoenix, Shiva, and so on and so forth as primals.

Some find their essence drawn from the various gods of the different Spoken races of my star. Others were once people. Shiva and Bahamut, in particular. Technically Anima too, but that might be stretching it a bit.