Chapter 29
The word hypostasis has two meanings. Thus, when used in the strict sense it means substance simply. However, the hypostasis subsisting in itself means the individual and the distinct person. Enhypostaton, or what has real existence, has two meanings also. Thus, it may mean being in the strict sense. In this sense we not only call substance in the strict sense enhypostatic but the accident, also. And it also means the hypostasis in itself, that is to say, the individual. Anhypostaton, or what has not real existence, is also used in two senses. Thus, that which has absolutely no existence at all is called anhypostaton, and the accident is also so called, because it does not subsist in itself but in the substance.
[12] {Περὶ ὑποστάσεως καὶ ἐνυποστάτου καὶ ἀνυποστάτου.} Τὸ τῆς ὑποστάσεως ὄνομα δύο σημαίνει: ἁπλῶς μὲν γὰρ λεγόμενον σημαίνει τὴν ἁπλῶς οὐσίαν, ἡ δὲ καθ' ἑαυτὴν ὑπόστασις τὸ ἄτομον σημαίνει καὶ τὸ ἀφοριστικὸν πρόσωπον. Καὶ τὸ ἐνυπόστατον δὲ δύο σημαίνει: σημαίνει γὰρ καὶ τὸ ἁπλῶς ὄν, καθὸ σημαινόμενον οὐ μόνον τὴν ἁπλῶς οὐσίαν ἀλλὰ καὶ τὸ συμβεβηκὸς ἐνυπόστατον καλοῦμεν. Σημαίνει δὲ καὶ τὴν καθ' αὑτὸ ὑπόστασιν ἤγουν τὸ ἄτομον. Καὶ τὸ ἀνυπόστατον δὲ δισσῶς λέγεται: λέγεται γὰρ ἀνυπόστατον καὶ τὸ μηδαμῇ μηδαμῶς ὄν. Λέγεται πάλιν ἀνυπόστατον καὶ τὸ συμβεβηκός, διότι τὸ συμβεβηκὸς οὐκ ἔχει ἰδίαν ὕπαρξιν, ἀλλ' ἐν τῇ οὐσίᾳ ὑφέστηκεν.