“Adam; Comes from the Egyptian Atum, the very first Man/God. The numerology of A. T. U. M is 1 . 2 . 3 . 4, the building blocks of the numerical system and also symbolizing the Cross.

The Semites have Adam, the Hindus the Atma or Atman.

Another supposedly Semitic permutation of the word is Adam Kadmon. However, this like the entire “Hebrew” alphabet comes originally from Egypt. It is in fact the “long lost” non-hieroglyphic script. Adam Kadmon (God-Man) comes from Adam -Ka-Amon, meaning the “Man of the Sun” or the “Solar Man.”

Source: Astro-Theology Etymology and Sidereal Mythology Tarot Astronomy