These matters now have been previously mentioned by us, as we are desirous to come in an orderly manner to the investigation of the sun, and moon, and stars by way of logical inference, and to ascertain whether they also ought properly to be reckoned among the principalities on account of their being said to be created in ᾿Αρχάς, i.e., for the government of day and night; or whether they are to be regarded as having only that government of day and night which they discharge by performing the office of illuminating them, and are not in reality chief of that order of principalities. (Book I, Chapter 7, Part 1)

The Greek, Αρχάς, which was apparently called out in the Latin translation, is arche. We see this in architect, archetype, and so on.

Αρχάς means beginning, corner, magistrate, power, principality, principle, rule.

In Genesis the sun, moon and stars were created first, at the very beginning. Origen wonders if given this precedence of creation they have power over the remainder of creation.

He seems to wonder about the range of power sun, moon, and stars might have. I think he is going well beyond light and gravity.