aseity
The attribute of being entirely self-derived, in contrast to being derived from or dependent on another; the quality of having within oneself the entire reason for one's being; utter independent self-existence and self-sustenance.
countable, uncountable
He is Spiritual, for were He composed of physical parts, some other power would have to combine them into the total, and his aseity would thus be contradicted.
Where it comes from
From Medieval Latin aseitas (“state of being by itself”), from Classical Latin a se + -itas.
Adapted from the Wiktionary entry aseity (CC BY-SA 4.0).