principium

He traces back its origin to God himself—ab Jove principium.

From What is Property? by P.-J. (Pierre-Joseph) Proudhon

We are not investigating an absolute principium essendi; for then, I admit, many valid objections might be started against our theory; but an absolute principium cognoscendi.

From Biographia Literaria by Samuel Taylor Coleridge

Space and time therefore form the principium individuationis.

From History of Modern Philosophy From Nicolas of Cusa to the Present Time by Richard Falckenberg

It is no answer to say that the consciousness of God is the principium essendi, while the consciousness of self is the principium cognoscendi.

From Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 4 "Carnegie Andrew" to "Casus Belli" by Various

Thus he who is still involved in the principium individuationis, in egoism, only knows particular things and their relation to his own person, and these constantly become new motives of his volition.

From The World As Will And Idea (Vol. 1 of 3) by Arthur Schopenhauer

Fifty-five years later, Isaac Newton’s great work, Philosophiae naturalis principia mathematica, The Mathematical Principles of Natural Philosophy, further reinforced the coherence of the Copernican system, with laws of mechanics and gravity that reinforced the model.

From Forbes ● Sep. 18, 2014

But at the door of the principia, Percy couldn’t resist turning.

From "The Son of Neptune" by Rick Riordan

She stormed into the principia with her purple cloak billowing, and her greyhounds at her feet.

From "The Son of Neptune" by Rick Riordan

He stood in a theater-sized version of the camp’s headquarters—a principia with walls of ice and freezing mist hanging in the air.

From "The Son of Neptune" by Rick Riordan

Figures in Roman armor emerged from the barracks, the principia, the armory, and the canteen, but they weren’t human.

From "The Son of Neptune" by Rick Riordan