"Hypokeimenon" is a term derived from the Greek word "ὑποκείμενον," which means "that which underlies" or "substratum." In philosophical contexts, particularly in the works of Aristotle and later in metaphysics, hypokeimenon refers to the underlying substance or essence of a thing that exists independently of its properties or qualities.
In Aristotle's ontology, the hypokeimenon is the fundamental reality that supports all attributes


