The Latin term for “life breath” principle was Anima meaning breath.

In late Latin Anima was referring to soul. Soul represented the breath Factor of the life principle.

In ancient times there were concepts that referred to entity like factors designated by the term soul or its many linguistic equivalents.

Later Anima and Soul collapsed into each other the earlier distinctions becoming ambiguous.

from “Psychic Sexuality the bio psychic anatomy of sexual energies ” by Ingo Swann