from The American Heritage® Dictionary of the English Language, 4th Edition
- n. All of the psyche that is not part of the ego or the conscious self.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. That part of the psyche excluding the ego
Translation of German Nichtich : nicht, not + Ich, I, ego.(American Heritage® Dictionary of the English Language, Fourth Edition)
From non- + ego (Wiktionary)