energeía
Energeía (Greek: ἐνέργεια) is a philosophical term most associated with Aristotle, though the word appears in later scholastic and contemporary usage. It is usually translated as actuality, activity, or being-in-operation. The term contrasts with dynamis (potential), with energeía indicating the realization of a thing's capacity rather than mere possibility.
In Aristotle's metaphysics and natural philosophy, energeía denotes the act by which a thing actualizes its
Scholastic philosophy, notably Aquinas, adopts energeía as the realized state of a thing in contrast to its
In modern Greek, energeía means energy in the scientific sense. In historical philosophy, the term remains central