νόμος, law.
νοῦς, intelligence, understanding.
οἴησις, arrogance, pride. It sometimes means in Antoninus the same as τῦφος but it also means "opinion."
οἰκονομία (dispositio, ordo, Cic.) has sometimes the peculiar sense of artifice, or doing something with an apparent purpose different from the real purpose.
ὅλον, τό, the universe, the whole: ἡ τῶν ὄλων φύσις.
ὄντα, τά, things which exist; existence, being.
ὄρεξις, desire of a thing, which is opposed to ἔκκλισις, aversion.
ὁρμή, movement towards an object, appetite; appetitio, naturalis appetitus, appetitus animi (Cic.).
οὐσία, substance ([vi. 49]). Modern writers sometimes incorrectly translate it "essentia." It is often used by Epictetus in the same sense as ὕλη. Aristotle (Cat. c. 5) defines οὐσία, and it is properly translated "substantia" (ed. Jul. Pacius). Porphyrius (Isag. c. 2): ἡ οὐσία ἀνωτάτω οὐσα τῷ μηδὲν πρὸ αὐτῆς γένος ἠν τὸ γενικώτατον.
παρακολουθητικὴ δύναμις, ἡ, the power which enables us to observe and understand.