Where does “ὑποστατικός” come from?

ὑποστατικός (Ancient Greek) comes from Ancient Greek ὑποστατός.

Ancestry of “ὑποστατικός”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	ὑποστατός	—

ὑποστατικός — Etymology, Origin & Word History | Etymology Explorer