ousa
Ousia (Greek: οὐσία) is a philosophical term usually translated as substance or essence. In ancient Greek thought, it denotes the fundamental reality that makes a thing what it is and serves as the primary subject of predication. The noun is related to the feminine participle ousa, meaning “being” or “that which exists.”
In Aristotle’s Metaphysics, ousia is central to the study of being. Substances are the beings that exist
Throughout medieval philosophy, the term ousia remained a foundational concept in discussions of ontology and metaphysics,
Etymology and usage: ousia derives from the verb “to be.” The present participle feminine ousa highlights the