Douglas Harper's Etymology Dictionary
Wiktionary
a. Arriving from or out of nothing. adv. Arriving from or out of nothing.
Wikipedia
Ex nihilo is a Latin phrase meaning "out of nothing". It often appears in conjunction with the concept of creation, as in creatio ex nihilo, meaning "creation out of nothing"—chiefly in philosophical or theological contexts, but also occurs in other fields.
In theology, the common phrase creatio ex nihilo (" creation out of nothing"), contrasts with creatio ex materia (creation out of some pre-existent, eternal matter) and with creatio ex deo (creation out of the being of God).
The phrase ex nihilo also appears in the classical philosophical formulation ex nihilo nihil fit, which means " Out of nothing comes nothing".
When used outside of religious or metaphysical contexts ex nihilo also refers to something coming from nothing. For example, in a conversation, one might raise a topic "ex nihilo" if it bears no relation to the previous topic of discussion.
Ex Nihilo is a fictional character appearing in American comic books published by Marvel Comics.
Usage examples of "ex nihilo".
Domine sancte, Pater omnipotens, aeterne Deus, qui omnia ex nihilo creasti.
So it's an up-by-his-bootstrap situation, a self-causing situationthen truly it is ex nihilo (no wonder there was no ideation!
It may be remarked here that we do not find the conception of creation ex nihilo in any of the ancient myths of Creation.
Either Ume's mind excites the emulsion atoms or air atoms to a point where photons are emitted, or else she creates the photons ex nihilo out of another aspect of the Greater Reality, as proponents of the new Universal Field Theory would say.
The door Bone pondered in flickering light was a huge brass panel proclaiming Ex Nihilo in the style of a bookplate.
The crest on his letter paper announced a promising motto: Ex nihilo omnia.