Ādi-Buddha
From Theosopedia
The first or supreme Buddha. A term used in Northern Buddhism to denote the One unknown, without beginning or end. Helena P. BLAVATSKY writes that it is identical with PARABRAHMAN or AIN SOPH. It is to be distinguished from Ādi-Budha, which means “first or primeval wisdom” (SD I:55). “The universal decrees of Karma and Adi-Budh” are carried out only by Nārada in Hindu esotericism (SD II:48). A related term is Ādi-Buddhi, which is “absolute consciousness.”